Mathematics advances not by the efforts of individuals alone but through the collective work of generations.

Life is too short to be living someone else's dream.

The world is moving so fast these days that the man who says it can't be done is generally interrupted by someone doing it.

Illness is the night-side of life, a more onerous citizenship. Everyone who is born holds dual citizenship, in the kingdom of the well and in the kingdom of the sick.

I have always believed that the way to make money is to buy when everyone else is selling and to sell when everyone else is buying.