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(Click for frequent words.) 61 Konrad Lorenz 60 Lev Vygotsky 59 BF Skinner 56 ethologist 55 Benjamin Libet 54 Rupert Sheldrake 54 Francis Galton 53 Genrikh 53 Hans Selye 52 philosopher Immanuel Kant 52 Marxist philosopher 52 Erwin Schrödinger 52 Gershom Scholem 51 philologist 51 Norbert Wiener 51 Jean Baptiste Lamarck 51 philosopher René Descartes 51 Greek philosopher Aristotle 51 humanistic psychology 51 Jean Piaget 51 Friedrich Hegel 50 GI Gurdjieff 50 Applied Animal Behaviour 50 TH Huxley 50 Erich Fromm 50 Leontiev 50 Leon Festinger 50 Victor Frankl 50 Goldovsky 50 physicist Max Planck 50 Leszek Kolakowski 50 Yesenin 50 writer Maxim Gorky 50 astronomer Tycho Brahe 49 Oparin 49 Sovietologists 49 Jurgen Habermas 49 Eugene Wigner 49 Mechnikov 49 transpersonal psychology 49 philosopher Georg Wilhelm 49 Georges Cuvier 49 Richard von Krafft 49 Anokhin 49 Jean Baudrillard 49 Fritz Perls 49 Jacques Barzun 49 Abraham Maslow 49 Ouspensky 49 Rabinowitch 49 Ashley Montagu 49 Erwin Schrodinger 49 Karl Menninger 49 RD Laing 49 Democritus 49 Gödel 49 George Gamow 49 Vasilievich 49 Ilya Prigogine 49 Kolyada 49 Philip Rieff 48 Justin Halberda 48 Suslov 48 Kurt Godel 48 ethology 48 Trofim Lysenko 48 Max Delbrück 48 Gumilyov 48 Belyaev 48 JBS Haldane 48 Zhores 48 Nikolayevich 48 Vernadsky 48 Theodore Adorno 48 Steven Mithen 48 Paracelsus 48 Pankov 48 PN Lebedev Physical 48 Theodor Adorno 48 behaviorism 48 Adel Safty 48 Shulgin 48 Georg Hegel 48 Dmitrii 48 historian Arnold Toynbee 48 relativity theory 48 Carl Friedrich Gauss 48 Gavriil 48 Plekhanov 48 Kolmakov 48 Yurii 48 Wilhelm Reich 48 Dirichlet 48 Stanley Krippner 47 Kurt Gödel 47 Moses Mendelssohn 47 Animal Cognition 47 Svetlanov 47 Marc Bekoff 47 Shirshov Institute 47 Carl Menger 47 René Descartes 47 Robert Sapolsky 47 Gennadi 47 Platonov 47 Aleksei Malashenko 47 Rav Kook 47 Roger Mugford 47 Lynn Margulis 47 Aleksandr Dugin 47 Konstantin Stanislavsky 47 Alfred Wegener 47 Edmund Husserl 47 Richard Taruskin 47 Chekist 47 Daniil Kharms 47 Freudian psychoanalysis 47 constructivism 47 Grigori 47 philosopher Friedrich 47 Gurdjieff 47 psychoanalytic theory 47 Massimo Pigliucci 47 Mikhailovich 47 Nicholas Kurti 47 Aleksandrovich 47 Pasko Rakic 47 Alexander Goncharov 47 philosopher mathematician 47 Robert Trivers 47 Mendeleev 47 Steven Pinker 47 Zamyatin 47 neuroendocrinology 47 philosopher Ludwig Wittgenstein 47 Volodia 47 Borisovich 47 von Mises 47 Jacques Lacan 47 Ludwig Wittgenstein 47 Jürgen Habermas 47 Stroganov 47 Plato Socrates 47 Donald Winnicott 47 Moshe Feldenkrais 47 Kozyrev 47 anthropologist Clifford Geertz 46 Viktor Frankl 46 composer Modest Mussorgsky 46 Max Horkheimer 46 Erik Erikson 46 Vygotsky 46 Freudian theory 46 Sergeyevich 46 existentialist philosopher 46 Schroedinger 46 Bulatov 46 Spirin 46 rhetoricians 46 d' Alembert 46 Karl Popper 46 Ernst Haeckel 46 Emmanuel Levinas 46 philosopher Aristotle 46 psychiatrist Sigmund Freud 46 Aleinikov 46 Gottfried Leibniz 46 Leo Szilard 46 Zinovyev 46 Vainberg 46 psychologist Steven Pinker 46 Alexis de Toqueville 46 Troitsky 46 poet Vladimir Mayakovsky 46 Marvin Minsky 46 Pavel Tsatsouline 46 Parpola 46 Barbara Sahakian 46 philological 46 scientist Nikola Tesla 46 Shklovsky 46 Psychoanalyst 46 primatology 46 mathematician physicist 46 Chuang Tzu 46 Leo Kanner 46 Krejca 46 Ze'ev Sternhell 46 Poincaré 46 Zhuangzi 46 Grigori Rasputin 46 Osip Mandelstam 46 Emile Durkheim 46 Aleksandr Pushkin 46 psychoanalysis Sigmund Freud 46 Tishkov 46 Erich Jarvis 46 Evgenii 46 philosopher 46 Galois 46 Claude Lévi Strauss 46 Hans Asperger 46 Bolshakov 46 Von Hayek 46 Meyerhold 46 Stanley Coren 45 Utkin 45 Mikheev 45 Heinrich Heine 45 mathematician Blaise Pascal 45 Hermann von Helmholtz 45 Thomas Szasz 45 philosophe 45 Yeshayahu Leibowitz 45 Sergey Markov 45 philosopher Karl Popper 45 biologist EO Wilson 45 Ernst Gombrich 45 RK Ramazani 45 Svyatoslav 45 Lacan 45 Antonio Gramsci 45 Kolmogorov 45 poet Anna Akhmatova 45 Landsbergis 45 #BC #BC 45 Freudian psychology 45 Konstantin Tsiolkovsky 45 Georg Lukacs 45 Chumakov 45 Kong Il keun 45 Bazarov 45 Nikolai Vavilov 45 Gilles Deleuze 45 Anaxagoras 45 Frank Sulloway 45 Danchenko 45 philosopher theologian 45 Proshkin 45 behaviourist 45 popularizers 45 theoreticians 45 Chasidism 45 Israel Shahak 45 dialectical materialism 45 Mikhail Bakhtin 45 Constructivists 45 Donna Haraway 45 Spencer Weart 45 Lao tzu 45 Pierre Bourdieu 45 positivists 45 Maurice Merleau Ponty 45 Antonin Artaud 45 Shchukin 45 Indologists 45 Vladimir Zakharov 45 Jacob Burckhardt 45 philosophers 45 Neoclassicism 45 Nikolaevich 45 Ernst Mayr 45 George Preti 45 Leon Theremin 45 Charpak 45 Vasily Aksyonov 45 quantum physicists 45 Erving Goffman 45 Theodore Zeldin 45 Grisha 45 Zhdanov 45 Velikovsky 45 Ivan Illich 45 Grigory 45 Minin 45 philosopher Theodor Adorno 45 Georgii 45 Imi Lichtenfeld 45 Ludwig von 45 Maslennikov 45 Janusz Korczak 44 Jerzy Grotowski 44 Dharmendra Modha manager 44 Niles Eldredge 44 Hugo Grotius 44 Joseph de Maistre 44 Vitaly Ginzburg 44 Ludwig Von Mises 44 Theodor W. 44 Chaliapin 44 Ibn Sina Avicenna 44 Scherbakov 44 Philology 44 Samokhvalov 44 geometer 44 Stephen Krashen 44 Simon LeVay 44 Wolfgang Pauli 44 Nikonov 44 Hegel Marx 44 Henri Poincaré 44 Aksyonov 44 Laozi 44 Andrew Dillin 44 Valdimir 44 Academician 44 psychoanalysts 44 economist Friedrich Hayek 44 Grigori Perelman 44 Kasimir Malevich 44 Nechayev 44 Zhores Alferov 44 Kary Mullis 44 Pivovarov 44 Georg Wilhelm Friedrich Hegel 44 Leon Aron 44 Tversky 44 Ivan Bunin 44 Vsevolod Meyerhold 44 Franz Boas 44 Augustinian monk 44 STEPHEN HAWKING 44 Ken Alibek 44 c.# BC 44 Freisler 44 Likhachev 44 Alan Sokal 44 Roger Penrose 44 Sir Karl Popper 44 Fritz Zwicky 44 metaphysician 44 Yevgeni 44 Cesare Beccaria 44 Alexander Blok 44 Matthieu Ricard 44 philosopher Jeremy Bentham 44 Okhrana 44 Henri Bergson 44 Euclidean geometry 44 Kutateladze 44 Vladyslav 44 Georg Cantor 44 Vladimir 44 phrenology 44 Behavioural Ecology 44 Sigmund Freud 44 Zivie 44 philosophes 44 Thirteenth Tribe 44 Leon Battista Alberti 44 Juergen Habermas 44 Efim 44 Viktor Yerofeyev 44 Menshikov 44 Nizami Ganjavi 44 Merleau Ponty 44 Yourcenar 44 Slava Zaitsev 44 Vasilyevich 44 Otto Warburg 44 Volodya 44 Peter Savolainen 44 AV Dicey 44 Sophists 44 Konstantin 44 Elaine Ostrander 44 Abraham Heschel 44 Sociobiology 44 Orlando Figes 44 German philosopher Friedrich 44 Fritjof Capra 43 Skryabin 43 Friedrich von Hayek 43 Freud 43 al Biruni 43 Cordelia Fine 43 Arkadi 43 Igor Kurchatov 43 Slezkine 43 Harold Lasswell 43 Niels Bohr 43 Herbert Marcuse 43 physicist Andrei Sakharov 43 Rene Descartes 43 astronomer Johannes Kepler 43 Sholokhov 43 Linda Nochlin 43 Taneyev 43 Elias Canetti 43 Edward Lozansky 43 Lise Meitner 43 Oceanology 43 Movsesyan 43 Platonist 43 Janet Monge 43 sociobiology 43 Fokin 43 Olaf Blanke 43 materialist conception 43 Gavril 43 author Mikhail Bulgakov 43 Mises Hayek 43 political commentator Pyotr 43 Maxime Rodinson 43 philosopher Karl Marx 43 Mendeleyev 43 Vasilii 43 Susana Martinez Conde 43 Czeslaw Milosz 43 Archilochus 43 Hugh Gusterson 43 Jean Francois Revel 43 evolutionary genetics 43 Arkady 43 KGB FSB 43 Sergei 43 Lotfi Zadeh 43 Hossam Haick 43 psychoanalyst Sigmund Freud 43 Abrikosov 43 MGIMO 43 Gofman 43 Natalia Gutman 43 Theodosius Dobzhansky 43 Markram 43 structuralism 43 Zen koan 43 Xing Xu 43 Gaston Bachelard 43 Emanuel Swedenborg 43 German philosopher Hegel 43 Richard Lewontin 43 constructivists 43 Oleg 43 Lev Landau 43 economist Thorstein Veblen 43 Akimov 43 scientist Konstantin Tsiolkovsky 43 Martin Buber 43 Matvei 43 Mikhail Lomonosov 43 Juan Carlos Izpisúa Belmonte 43 Sukhanov 43 Mikaelyan 43 Paul Ricoeur 43 Greek philosophers 43 psychologist Sigmund Freud 43 Raphael Mechoulam 43 Dr. Daniel Geschwind 43 Nikolai Bukharin 43 Yakemenko 43 Belkovsky 43 Anatole France 43 Lyotard 43 Menshevik 43 Grushin 43 Vladimir Mayakovsky 43 Kerstin Lindblad Toh 43 Maestripieri 43 Simone Weil 43 composer Dmitry Shostakovich 43 astronomer mathematician 43 Eugeny 43 Fritz Haber 43 Arthur Koestler 43 Asmolov 43 Antipov 43 Carl Von Clausewitz 43 Ronald Dworkin 43 philosopher Henri Bergson 43 dissident Andrei Sakharov 43 Vilfredo Pareto 43 Irene Pepperberg 43 Andreyevich 43 Matthias Küntzel 43 Hannah Arendt 43 mathematician astronomer 43 Mircea Eliade 43 Shlomo Avineri 43 Søren Kierkegaard 43 Simon Baron Cohen 42 logician 42 Cendrars 42 Yevtushenko 42 Besarab 42 Malraux 42 Alexander Dovzhenko 42 Osipov 42 de Chardin 42 logicians 42 Peter Kuznick 42 Johan Auwerx 42 Lord Acton 42 journal Behavioral Ecology 42 David Cesarani 42 Debra Satz 42 Christopher Lasch 42 Alexander Melamid 42 evolutionary theorist 42 Fredric Jameson 42 Lepenies 42 anarchist Mikhail Bakunin 42 Maltsev 42 VI Lenin 42 Savinov 42 Epictetus 42 Malkov 42 Vladimir Ilyich 42 Stolyarov 42 Karl Jaspers 42 Kyiv Mohyla Academy 42 kabbalist 42 Soren Kierkegaard 42 Andrey Sakharov 42 Polikarpov 42 Leslie Orgel 42 Mikhail Gorbachov 42 Piatigorsky 42 Grigoriy 42 Talcott Parsons 42 Timothy Salthouse 42 Baruch Spinoza 42 Dame Jane Goodall 42 Mikhail 42 Baconian 42 Cimrman 42 Arthur Schopenhauer 42 poem Babi Yar 42 Tsiolkovsky 42 Oleg Antonov 42 Rainer Blatt 42 Sir Francis Galton 42 El Sarraj 42 AK Ramanujan 42 Seymour Benzer 42 Lonely Crowd 42 Richard Feynman 42 Cordain 42 Gregory Bateson 42 Ted Daeschler 42 Akhmatova 42 Emmy Noether 42 Frederick Engels 42 metaphysicians 42 Lacanian 42 Lao Tze 42 Somov 42 von Humboldt 42 Theophrastus 42 Feodor 42 Lysenkoism 42 Nasser Hadian 42 Erika von Mutius 42 Julia Kristeva 42 Marcus du Sautoy 42 Markus Jokela 42 Louis Althusser 42 Josef Korbel 42 journal Behavioural Ecology 42 avant garde composers 42 neo Darwinian 42 Lipatov 42 Evgeny 42 Gianni Vattimo 42 Prokhanov 42 Fyodor 42 Paul Dirac 42 Hadji Murad 42 psycholinguistics 42 Ran Barkai 42 Professor Amartya Sen 42 Stoic philosophers 42 Otakar 42 Akasofu 42 Innokenty 42 Authoritarian Personality 42 Sergei Korolev 42 Vermeule 42 Jonathan Haidt 42 Hanski 42 Robert Bunsen 42 Friedrich von Schiller 42 Andre Bazin 42 Chekists 42 Kondrashin 42 Hans Moravec 42 Ramakrishna Paramahamsa 42 Kurchatov Institute 42 Pico della Mirandola 42 von Frisch 42 Svante Pääbo 42 Hölderlin 42 Zorin 42 Fackenheim 42 Evolutionary biology 42 Romantic composers 42 holocaust survivor Elie Wiesel 42 Steven Austad 42 thesis antithesis 42 Zhadobin 42 Márai 42 Eotvos 42 Jacques Monod 42 Paul Valéry 42 Benoit Mandelbrot 42 Benzion Netanyahu 42 Ludwig Feuerbach 42 Dmitri Trenin 42 Ethology 42 mythologist Joseph Campbell 42 Dialectical Materialism 42 Ukrainian SSR 42 Eötvös Loránd University 42 Jesse Bering 42 Pauline Maier 42 Cognitive Evolution 42 Mikhail Gromov 42 scientist Andrei Sakharov 42 Thomas Tuschl 42 word denotes genus 42 Vytautas Landsbergis 42 Sufi poet Rumi 42 Canis familiaris 42 Martin Heidegger 42 economist Ludwig von 42 Hegelian 42 Sten Grillner 42 Nietzche 42 Paula Fass 42 Evgeniy 42 Rodinson 42 Vorotnikov 42 orientalists 42 Mashkov 42 Elizabeth Spelke 42 philosopher Heraclitus 42 Scientism 42 Oblomov 41 Marx Engels 41 Agamben 41 Renaissance painters 41 Aesthetic Realism 41 Artemy 41 physicist Werner Heisenberg 41 philosopher Socrates 41 Gombrowicz 41 Lamarck 41 Lomonosov 41 Glushkov 41 Alexey Malashenko 41 Glazov 41 Pytor 41 Zecharia Sitchin 41 polymaths 41 Juergen Richt 41 Abdolkarim Soroush 41 Norman Naimark 41 Genady 41 Leonid 41 Rabbi Loew 41 Vilayanur Ramachandran 41 Russophobe 41 philosopher Plato 41 Josiah Royce 41 Egorov 41 Zen masters 41 Mussar 41 Pacioli 41 composer Dmitri Shostakovich 41 Alexei Arbatov 41 Vladlen 41 author Alexander Solzhenitsyn 41 humanist philosopher 41 medieval archeology 41 Mileva Maric 41 Guattari 41 Mallarme 41 Theodore von Kármán 41 Greengard lab 41 Arthur Danto 41 Artur Rubinstein 41 Biomedical Problems 41 Senckenberg 41 Benedetto Croce 41 al Farabi 41 poet dramatist 41 Robert Plomin 41 Edward Bernays 41 Plaksin 41 Zardusht Alizade 41 Henri Becquerel 41 Donald Ingber 41 philospher 41 Galapagos finches 41 Osthaus 41 Roman poet Ovid 41 Louise Leakey 41 Troy Duster 41 Katerina Harvati 41 Tchaikovsky Conservatory 41 Gunnar Myrdal 41 Geza Vermes 41 Nima Arkani Hamed 41 nested dolls 41 Pierre Teilhard de Chardin 41 Richard Wrangham 41 Boris Yefimov 41 sophists 41 Friedrich Nietzsche 41 Desiderius Erasmus 41 Socrates Plato 41 Emil Kraepelin 41 Russian émigré 41 photographing handrails antennas 41 David Riesman 41 Jaakko Tuomilehto 41 Dolph Schluter 41 Kropotkin 41 Maxim Gorky 41 Lionel Trilling 41 Fernand Braudel 41 Enlightenment rationalism 41 Herzen 41 Enlightenment philosopher 41 syllogisms 41 Goethe Schiller 41 Nobel laureate physicist 41 Zolotukhin 41 psychoanalytical 41 Kama Ginkas 41 Tolmachev 41 Voroshilov 41 Pavel Kroupa 41 Puijila 41 Thomashefsky 41 functionalist 41 molecular phylogeny 41 R. Buckminster Fuller 41 renowned theoretical physicist 41 Grigorii 41 Azim Surani 41 Leontief 41 Georgiy 41 Eurasianism 41 Myroslav 41 Northwest Equine Reproduction 41 Friedrich Froebel 41 deconstructionists 41 Makeyev 41 Tumanyan 41 Richard Hofstadter 41 Andreas Meyer Lindenberg 41 Constructivism 41 Rorty 41 Lévi Strauss 41 Moses Maimonides 41 Rubtsov 41 Yevgeny Velikhov 41 neuroscientific 41 Lomonosov Moscow 41 nouveau roman 41 romanticist 41 Yevgeny Yevtushenko 41 philosopher Ayn Rand 41 Lubomyr 41 Gmachl 41 physicists chemists 41 Robert Wistrich 41 Kekkonen 41 Bertrand Russell 41 Julien Benda 41 Karl Kautsky 41 novelist Ayn Rand 41 physicist Niels Bohr 41 observational astronomy 41 MOSCOW Alexander Solzhenitsyn 41 Arkadiy 41 Obukhov 41 Elizabeth Anscombe 41 Eric Voegelin 41 Grover Krantz 41 trivium 41 Greek philosopher Plato 41 Marx Freud 41 Vladimir Ilyich Lenin 41 Alexander Rodchenko 41 Leonardo Fibonacci 41 Yuri 41 Goehr 41 Aristotle 41 Sarah Blaffer Hrdy 41 Gaia Theory 41 Alexandrovna 41 Ernest Gellner 41 Michael Gratzel 41 philosopher Edmund Burke 41 Durkheim 41 Leonard Susskind 41 mystic poet 41 Lao Tse 41 Pääbo 40 Dmitri Mendeleev 40 Didier Sornette 40 philosopher Friedrich Nietzsche 40 Gustave Moreau 40 Roland Barthes 40 Misesian 40 Vitaly Komar 40 Admiral Ushakov 40 Sokov 40 Harold Laski 40 Boolean algebra 40 Fred Hoyle 40 Murray Gell Mann 40 George Christophides 40 Michael Merzenich 40 Hakob 40 philosopher Slavoj Zizek 40 empiricists 40 Happiness Hypothesis 40 politologist 40 philosopher Isaiah 40 Gegham 40 Madame de Staël 40 PURPLE PATCH 40 Quantum Physics 40 Adam Michnik 40 Yezhov 40 Livy cited 40 Walter Pater 40 Michel Foucault 40 Karen Delise 40 Alexandr Solzhenitsyn 40 Paul Thornalley 40 Zurab Tsereteli 40 Leif Andersson 40 Meave Leakey 40 Joseph Schumpeter 40 Necip 40 Caltech physicist 40 Dmitri Tymoczko 40 Giambattista Vico 40 Mallarmé 40 Peter Kreeft 40 Adolf Loos 40 Feodor Chaliapin 40 empirical observation 40 Max Plank 40 P. Feynman 40 Bruno Bettelheim 40 Pavel Baev 40 Daniele Ganser 40 Richard Rorty 40 sociologist Zygmunt Bauman 40 Empedocles 40 Bulgakov 40 mathematical proofs 40 Mennini 40 Shahram Akbarzadeh 40 philosopher Emmanuel Levinas 40 populariser 40 Sovietologist 40 Primatologists 40 de Duve 40 Arseny 40 etymologists 40 Bruno Latour 40 Thorstein Veblen 40 Velikhov 40 journal Theriogenology 40 Bernd Heinrich 40 CG Jung 40 philosopher Jacques Derrida 40 osteology 40 Yury Gagarin 40 Nobel Prizewinner 40 Suprematism 40 Kaiser Wilhelm 40 Hans Bethe 40 Peter Makovicky 40 philologists 40 Shlomo Sand 40 Rabbi Hillel 40 Candille 40 Ab Osterhaus 40 scientist Mikhail Lomonosov 40 Muslum Magomayev 40 Auguste Comte 40 Bert Sakmann 40 Tractatus Logico 40 Edith Raim 40 Hakuin 40 bioacoustics 40 Karl Polanyi 40 Viennese composer 40 poet Andrei Voznesensky 40 Ferdinand de Saussure 40 Peter Sloterdijk 40 Louis Agassiz 40 Landowska 40 Anatolyevich 40 People Commissars 40 Anton Zeilinger 40 theorists 40 Sverdlov 40 Timofey 40 Principia Mathematica 40 Lomonosov Moscow State 40 Malikova 40 universals 40 Lamarckian 40 Hans Peter Uerpmann 40 Sobolev 40 Angewandte 40 archaic ungulates 40 Valerii 40 Transcendentalist 40 Evolutionary Anthropology Leipzig 40 André Breton 40 Blaise Pascal 40 Bengt Samuelsson 40 writer Johann Wolfgang 40 Alexey 40 Vetrov 40 Dimitrios Trichopoulos 40 Arpad Pusztai 40 revolutionary praxis 40 Gottfried Wilhelm Leibniz 40 Sophocles Euripides 40 Parmenides 40 Dugin 40 Zaporozhets 40 Frans de Waal 40 Ivanka Savic 40 psychoanalysis 40 Jacques Maritain 40 philosopher Cicero 40 Galenson 40 mathematician Benoit Mandelbrot 40 Nizharadze 40 Djerassi 40 Laurie Marker 40 Otto Lilienthal 40 Kevin Padian 40 Dariusz Leszczynski 40 Jake Socha 40 Nina Jablonski 40 Galtung 40 Kristeva 40 Jaakko Kaprio 40 Enlightenment philosophers 40 Karolinska Institutet Sweden 40 Gilles Kepel 40 Rasim Musabekov 40 Nigmatulin 40 Psychoanalysts 40 Carl Jung 40 German philosopher Immanuel 40 determinists 40 Pedagogical Institute 40 talmudic 40 Ilkka Hanski 40 Thure Cerling 40 Athanasius Kircher 40 Sigurd Hofmann 40 Anders Celsius 40 philosopher Hannah Arendt 40 Henadz 40 postcolonial literature 40 Edward Luttwak 40 Freiherr von 40 deconstructionism 40 Yevgenii 40 Gayatri Spivak 40 Alexander Iskandaryan 40 Andrew DeWoody 40 Niels Harrit 40 Götz 40 Mahasarakham University 40 philosophers theologians 40 Alain Badiou 40 Ralf Hutter 40 Louis Menand 40 psychologist Abraham Maslow 40 General Leonid Ivashov 40 Vladimir Slivyak 40 Yuri Felshtinsky 40 Steven Strogatz 40 Walter Laqueur 39 thermobaric weapon 39 Dirk Helbing 39 Zbig 39 Gerassi 39 thinker Confucius 39 La Rochefoucauld 39 theorist 39 Clifford Nass 39 Poincare 39 Pierre Simon Laplace