Failure is success in progress

I know what it's like to see one's mother go through the agony of death and be unable to help; there is no consolation. We all have to bear such heavy burdens, for they are unalterably linked to life.

I believe that whatever we do or live for has its causality; it is good, however, that we cannot see through to it.

Mathematics are well and good but Nature keeps dragging us around by the nose.

I am doing just fine, considering that I have triumphantly survived Nazism and two wives.

This is what the painter, the poet, the speculative philosopher, and the natural scientists do, each in his own fashion.

My pacifism is an instinctive feeling, a feeling that possesses me because the murder of men is disgusting. My attitude is not derived from any intellectual theory but is based on my deepest antipathy to every kind of cruelty and hatred.