Mathematics is not a spectator sport; to understand it, one must engage with it actively.

We are all leaves on the great tree of evolution.

Thinking is behavior. The muscular habits learned in overt speech are responsible for implicit or internal speech (thought).

学习数学的唯一方法就是做数学。

衣服和食物不是天上掉下来的,是通过辛勤劳动换来的。

The total amount of suffering per year in the natural world is beyond all decent contemplation.

Dealing with failure is easy: Work hard to improve. Success is also easy to handle: You've solved the wrong problem. Work hard to improve.

杨元庆来华为参观时，杨元庆表示联想要加大研发投入，做高科技的联想，任正非以一位长者的口吻对他如此说。