To study the mind is to study adaptation in action; every thought is a tool for living.
研究心靈就是研究適應(yīng)行為；每個(gè)思想都是生活的工具。
數(shù)學(xué)之美在于它的簡潔與深度。
過去并未死去，它甚至從未過去。
The best ideas often come from the most unexpected places.
The only thing that can make you a leader is your vision.