Related by context. Frequent words. (Click for all words.) 67 Greek philosophers 64 Aristotle 63 philosophers 61 philosopher 61 Lao Tzu 59 Karl Popper 59 Heraclitus 58 classical antiquity 58 Aristotelian 58 Montesquieu 57 Immanuel Kant 57 Friedrich Nietzsche 57 Reinhold Niebuhr 57 deist 56 rationalist 56 Nietzsche 56 ancients 56 Upanishads 56 Bertrand Russell 55 Plutarch 55 classical liberalism 55 Enlightenment 55 Ancient Greek 55 Karl Marx 55 Old Testament prophets 55 GK Chesterton 55 talmudic 54 Jacques Derrida 54 Martin Heidegger 54 Blaise Pascal 54 Johann Wolfgang von Goethe 54 Friedrich Hayek 54 Antonio Gramsci 54 Deists 53 Kautilya 53 Pythagoras 53 hermeneutics 53 Philosopher 53 Tertullian 53 Gnosticism 53 Gautama Buddha 53 Tao Te Ching 53 deists 53 Swami Vivekananda 53 philologist 53 Jean Jacques Rousseau 53 sacred Scripture 53 Tacitus 52 Friedrich Engels 52 ancient Greeks 52 Socrates 52 Diderot 52 Gnostic 52 Ancient Greeks 52 rationalism 52 Gnostics 52 Spinoza 52 freethinker 52 Thucydides 52 Hegelian 52 Herodotus 52 Baal Shem Tov 52 Rig Veda 51 humanism 51 teleological 51 Thomas Aquinas 51 eternal truths 51 Schopenhauer 51 Arthur Koestler 51 Athanasius 51 John Maynard Keynes 51 antiquity 51 Rorty 51 ancient Hebrews 50 Michel Foucault 50 positivist 50 Sacred Scripture 50 humanist 50 monotheistic religion 50 Discourses 50 hermeneutic 50 Romantic poet 50 Relativism 50 attained enlightenment 50 Persian empire 50 universalism 50 de Tocqueville 50 ancient Greek 50 Bolshevism 50 Philosophers 50 theologians 50 epigram 50 Orientalists 50 Apostle Paul 50 Murray Rothbard 50 monasticism 50 Kantian 49 Thomas Hobbes 49 pagan gods 49 Kierkegaard 49 Hippocrates