I myself should also be dead already, but I am still here.

Epistemology without contact with science becomes an empty scheme. Science without epistemology is-insofar as it is thinkable at all-primitive and muddled.

The world is not full of evil because of those who do wrong. It is full of evil because of those who do nothing.

Work is the only thing that gives substance to life.

What interests me most is whether God could have made the world differently.

Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social environment. Most people are even incapable of forming such opinions.

The creative principle [of science] resides in mathematics.