When an individual is awake, almost all he does and says is inspired by the model of behavior that the society imposes,even without his being aware of it.

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

Whether...a change from the supremacy of natural science to a new social science will take place...depends on one factor: how many brilliant, learned, disciplined, and caring men and women are attracted by the new challenge.

The revolutionary and critical thinker is in a certain way always outside of his society while of course he is at the same time also in it.

Free man is by necessity insecure, thinking man by necessity uncertain.

Mobilizing the love of life is the only force that can defeat the love for the dead.

Love is the active concern for the life and the growth of that which we love.