Having lost religious faith and the humanistic values bound up with it, he [man] concentrated on technical and material values and lost the capacity for deep emotional experiences, for the joy and sadness that accompany them.

Love is a power which produces love.

We've wanted to produce more in the 19th century and the 20th century in order to give man the possibility for more dignified human life; but actually what has happened is that production and consumption have become means - have ceased to be means and have become ends, and we are production crazy and consumption crazy.

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.

Just as love for one individual which excludes the love for others is not love, love for one's country which is not part of one's love for humanity is not love, but idolatrous worship.

We can express ideas without being afraid of being killed or imprisoned.

In love the paradox occurs that two beings become one and yet remain two.