理论计算机科学的美在于它能够将抽象的数学概念与实际的计算问题联系起来。

The artist's role is to question, not to answer.

中国黄金要成为世界一流的矿业公司。

人们并不愚蠢，只是世界很复杂。

There are dark shadows on the earth, but its lights are stronger in the contrast.