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

The story of chemistry is the story of humanity’s quest to understand the world.

在奥斯维辛之后写诗是野蛮的。

渔民的智慧不在于他捕获了多少，而在于他留下了多少。

The past is a shadow that follows us, always present, always influencing.

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。