The desire for recognition, the thymotic part of the soul, is the most politically dangerous part of human nature.

最重要的技能是学会如何学习。

All things are possible until they are proved impossible and even the impossible may only be so, as of now.

如果你想解决大问题，首先要提出正确的问题。

The risk is not that we aim too high and miss, but that we aim too low and hit.