"The true measure of progress is not in the accumulation of knowledge, but in its application for the betterment of humanity."
The worst evils in history have always been committed by those who truly believed they were combating evil. Beware of combating evil.
Memory is a complicated thing, a relative to truth, but not its twin.
The mathematician's best work is art, a high perfect art, as daring as the most secret dreams of imagination, clear and limpid.