有时候你最害怕的事情就是能让你自由的事情。

Our heroes are human heroes. That's a very new situation. Most other societies have had, right at their center, the worship of something transcendent: a god, a spirit, a natural force, the universe, whatever it is -- something else that is being worshiped. We've slightly lost the habit of doing that, which is, I think, why we're particularly drawn to nature.

好的研究关键不仅在于方法，还在于问题的清晰性和数据的质量。

数学不是关于数字、方程、计算或算法的：它是关于理解的。

永远不要低估一个积极进取的团队的力量。