Aeschylus, Aristotle, Francis Bacon, George Berkeley, Giordano Bruno, René Descartes, Euripides, Thomas Hobbes, Homer, David Hume, Immanuel Kant, John Locke, Plato, Jean-Jacques Rousseau, Sophocles & Benedict de Spinoza
Plato, Dante Alighieri, Sun Wu, Henry David Thoreau, Friedrich Nietzsche, Homer, Confucius, Xenophon, Aristotle, Karl Marx, Friedrich Engels, Adam Smith, Thomas More, Francis Bacon, John Locke, David Hume, Jean-Jacques Rousseau & Ronghua Xiang
