抽象的目的不是模糊，而是创建一个新的语义层次，在这个层次上可以绝对精确。
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
En cada historia hay un pedazo de verdad, aunque esté disfrazada de mentira.
The only way to do great work is to love what you do.
学习数学的唯一方法就是做数学。
"The world is, in the end, what we say it is."
"The world is full of obvious things which nobody by any chance ever observes."
The universe is asymmetric and I am persuaded that life, as it is known to us, is a direct result of the asymmetry of the universe.
每本书都是一次旅程，每次旅程都是一本书。