Children have real understanding only of that which they invent themselves, and each time that we try to teach them something too quickly, we keep them from reinventing it themselves.

"It is not the strength of the body that counts, but the strength of the spirit."

最好的云战略不是拥有云战略，而是拥有一个能利用云的商业战略。

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

学习数学的最好方法就是去做数学。

土地记得人们遗忘的事。