Of all my books of philosophy and spirituality, this one is certainly the most accessible, but probably also the most useful. For it is not a theoretical knowledge that I seek to convey, but a practical knowledge, the most essential one: how to lead a good, happy life, in harmony with oneself and others. What I say here with simple words and concrete examples, as in a conversation with a friend, is the fruit of thirty years of research and experience. My personal testimony would not matter if it were not enlightened by the thought of the philosophers and wise men of humanity who marked my life: the Buddha, Confucius, Socrates, Aristotle, Epicure, Epictetus, Jesus, Montaigne, Spinoza, Schopenhauer, Levinas among others. Existing is a fact, living is an art. All the way to life is to go from ignorance to knowledge, from fear to love. (Frédéric Lenoir)