Lammert Kamphuis, Epictetus, Marcus Aurelius, Seneca

Plato, Marcus Aurelius, Epictetus, Confucius

Heraclitus, Seneca the Younger, Cicero, Epictetus, Marcus Aurelius, Aristotle, Plato

Carl Jung, Marcus Aurelius, Leonardo da Vinci, Anne Frank, Albert Einstein

Charles de Gaulle, Abraham Lincoln, Mahatma Gandhi, Marcus Aurelius, Winston Churchill, Napoleon Bonaparte

Anne Frank, Jane Austen, Marcel Proust, William Shakespeare, Johann Wolfgang von Goethe, Marcus Aurelius, Mahatma Gandhi, Leonardo da Vinci, Lao Zi, Buddha, Immanuel Kant, Friedrich Nietzsche, Emil Cioran, Confucius, Cicero, Anton Chekhov, Arthur Schopenhauer, Baruch Spinoza, Carl Jung, Albert Einstein

Marcus Aurelius, Epictetus, Seneca the Younger

Cicero, Epictetus, Seneca the Younger, Marcus Aurelius

Beaumarchais, Nicolas de Chamfort, Georg Christoph Lichtenberg, Denis Diderot, Henry David Thoreau, Ralph Waldo Emerson, Søren Kierkegaard, Montesquieu, Voltaire, Oscar Wilde, Charles de Gaulle, Abraham Lincoln, Winston Churchill, Napoleon Bonaparte, Antoine de Saint-Exupéry, Anne Frank, Jane Austen, Marcel Proust, William Shakespeare, Martin Luther King, Marcus Aurelius, Mahatma Gandhi, Leonardo da Vinci, Lao Zi, Buddha, Immanuel Kant, Friedrich Nietzsche, Socrates, Confucius, Cicero, Fyodor Dostoevsky, Arthur Schopenhauer, Baruch Spinoza, – Plato, Albert Einstein

Mother Teresa, Martin Luther King, Marcus Aurelius, Mahatma Gandhi, Gautama Buddha