The most important thing is to not stop questioning.

To raise new questions, new possibilities, to regard old problems from a new angle, requires creative imagination and marks real advance in science.

Nationalism, on my opinion, is nothing more than an idealistic rationalization for militarism and aggression.

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.

We must learn to see the world anew.

The most powerful force in the world is compound interest.

The number of natural hypothesis that can explain any given phenomena is infinite.