Love is the only sane and satisfactory answer to the problem of human existence.

Human history begins with man's act of disobedience which is at the same time the beginning of his freedom and the development of his reason.

Greed is a bottomless pit which exhausts the person in an endless effort to satisfy the need without ever reaching satisfaction.

Finally one arrives at this: the state of sleep has an ambiguous function; in sleep, the lack of contact with the culture brings out the worst and also the best in us.

One of the worst forms of mental suffering is boredom, not knowing what to do with oneself and one's life. Even if man had no monetary, or any other reward, he would be eager to spend his energy in some meaningful way because he could not stand the boredom which inactivity produces.

The most important factor for the development of the individual is the structure and the values of the society into which he was born.

The pace of science forces the pace of technique. Theoretical physics forces atomic energy on us; the successful production of the fission bomb forces upon us the manufacture of the hydrogen bomb. We do not choose our problems, we do not choose our products; we are pushed, we are forced -- by what? By a system which has no purpose and goal transcending it, and which makes man its appendix.