Freedom does not mean license.

Human history began as an act of disobedience, and it is not unlikely that it will be terminated by an act of obedience. At this point in history the capacity to doubt, to criticize and to disobey may be all that stands between a future for mankind and the end of civilization.

If you take a salesman, who sells a useless commodity, he feels like a fraud.

The third error leading to the assumption that there is nothing to be learned about love lies in the confusion between the initial experience of ‘falling’ in love, and the permanent state of being in love, or as we might better say, of ‘standing’ in love.

To hope means to be ready at every moment for that which is not yet born, and yet not become desperate if there is no birth in our lifetime.

I believe that man is the product of natural evolution that is born from the conflict of being a prisoner and separated from nature, and from the need to find unity and harmony with it.

Modern man's happiness consists in the thrill of looking at the shop windows, and in buying all that he can afford to buy, either for cash or on installments.