The elegance of a proof is as important as its correctness.
The only limit to our realization of tomorrow is our doubts of today.
没有人值得你流泪,值得让你这么做的人不会让你哭泣。
Love is the most powerful force in the world.
Quiet people have the loudest minds.
价值链是通过其创造并将产品或服务交付给客户的一系列活动。