It is only when we realize that life is taking us nowhere that it begins to have meaning.

Possibly the most interesting first impression of my life came from the world of dreams.

The most difficult thing is to know what we do know, and what we do not know.

I have become so accustomed to think "scientifically" that I am afraid even to imagine that there may be something else beyond the outer covering of life. I feel like a man condemned to death, whose companions have been hanged and who has already become reconciled to the thought that the same fate awaits him.

Think about death. You do not know how much time remains to you. And remember that if you do not become different, everything will be repeated again, all foolish blunders, all silly mistakes, all loss of time and opportunity - everything will be repeated with the exception of the chance you had this time, because chance never comes in the same form.You will have to look for your chance next time. And in order to do this, you will have to remember many things, and how will you remember then if you do not remember anything now?

I mean that you always know what results will come from one or another of your actions; but in a strange way you want to do one thing and get the result that could only come from another

a man can be given only what he can use; and he can use only that for which he has sacrificed something