Abraham Lincoln
Albert Einstein
Aristotle: Ethics and the Virtues
Confucius
Immanuel Kant
James Mill
Friedrich Wilhelm Nietzsche
Jean-Jacques Rousseau
Jeremy Bentham
John Locke
John Bordley Rawls
John Stuart Mill
Karl Marx
Martin Luther King Jr.
Nelson Rolihlahla Mandela
Plato
Niccolo di Bernardo dei Machiavelli
Robert Nozick
Socrates
Thomas Hobbes
Vladimir Vladimirovich Putin
