去做对他人有益的事情。
My mind is my weapon. My brother has his sword, King Robert has his warhammer, and I have my mind... And a mind needs books as a sword needs a whetstone, if it is to keep its edge.
The responsibility of agricultural scientists is to make the land produce more grain and let farmers harvest more.
If you want to make a bond, you are to take the risk of tearing.
幽默是一种处理世界的方式，一种应对世界的方式，一种理解世界的方式。
Theorems are the milestones of mathematics.