The biggest risk is not taking any risk. In a world that is changing quickly, the only strategy that is guaranteed to fail is not taking risks.

The best way to help people is not to do things for them, but to help them do things for themselves.

当人类心智在做计算机器的工作时，它很少感到满足，也肯定从未发挥其最高功能。

The most beautiful as well as the most ugly inclinations of man are not part of a fixed biologically given nature, but result from the social process which creates man.

"Every discovery in science is a step closer to understanding our place in the cosmos."

对这个世界看得越多，我就越不满。