The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

The truth is always complicated, and it’s rarely pure.

领导力就是做出艰难的决定并坚持到底，即使这些决定不受欢迎。

Climate change is the ultimate test of our agricultural ingenuity.

With great tools comes great responsibility—especially when those tools can alter life itself.

预见数学未来的真正方法是研究它的历史和现状。