But not only medicine, engineering, and painting are arts; living itself is an art in fact, the most important and at the same time the most difficult and complex art to be practiced by man.

Infantile love follows the principle: "I love because I am loved." Mature love follows the principle: "I am loved because I love." Immature love says: "I love you because I need you." Mature love says: "I need you because I love you.

Love, experienced thus, is a constant challenge; it is not a resting place, but a moving, growing, working together; even whether there is harmony or conflict; joy or sadness, is secondary to the fundamental fact that two people experience themselves from the essence of their existence, that they are only one with each other by being one with themselves, rather than by fleeing from themselves.

Creativity is the ability to see and to respond.

To spare oneself from grief at all cost can be achieved only at the price of total detachment, which excludes the ability to experience happiness

The fact that millions of people share the same vices does not make these vices virtues, the fact that they share so many errors does not make the errors to be truths, and the fact that millions of people share the same form of mental pathology does not make these people sane.

What is it that distinguishes man from animals? It is not his upright posture.