Knowing means to penetrate through the surface, in order to arrive at the roots, and hence the causes; knowing means to "see" reality in its nakedness. Knowing does not mean to be in the possession of the truth; it means to penetrate the surface and to strive critically and actively in order to approach truth ever more closely.

We are a society of notoriously unhappy people: lonely, anxious, depressed, destructive, dependent - people who are glad when we have killed the time we are trying so hard to save.

I love in you everybody, I love through you the world, I love in you also myself.

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.

Alienation as we find it in modern society is almost total… Man has created a world of man-made things as it never existed before. He has constructed a complicated social machine to administer the technical machine he built. The more powerful and gigantic the forces are which he unleashes, the more powerless he feels himself as a human being. He is owned by his creations, and has lost ownership of himself.

Happiness is a very proud word of our whole cultural heritage.

I think our danger is that we talk one thing, and we feel and act another thing.