一本好书是一个永远不会让你失望的朋友。
"A good book is a friend that never lets you down."
Life is a constant struggle between being an individual and being a member of the community.
The truth is, I don't know what I would have done without mathematics.
Profit should never come at the cost of the planet’s future.
最大的声音反而听不见,最大的形象反而看不见