Life consists in penetrating the unknown, and fashioning our actions in accord with the new knowledge thus acquired.

The only absolute knowledge attainable by man is that life is meaningless.

The most important knowledge is that which guides the way you lead your life.

It is always consoling to think of suicide: in that way one gets through many a bad night.

All knowledge which ends in words will die as quickly as it came to life, with the exception of the written word: which is its mechanical part.

I only hope that when I am free, as they are free to go in quest, of the knowledge beyond the bounds of life, it may not seem better to me to rest.