文学的美在于它超越时间和空间的能力。

Every artist is a child of his time, but the great ones are also the parents of the future.

不学习历史的人注定要重复错误。

数学的历史是人类好奇心和创造力的历史。

My favorite things in life don’t cost any money.It’s really clear that the most precious resource we all have is time.

You don't have to be a mathematician to have a feel for numbers.