艺术是一面照向社会的镜子，但也是一把塑造社会的锤子。

盈利和环境保护可以而且必须齐头并进。

"Only the very weak-minded refuse to be influenced by literature and poetry."

The farmer is the only man in our economy who buys everything at retail, sells everything at wholesale, and pays the freight both ways.

我只是尽量保持冷静，不让压力影响我。

数学家的工作永无止境；总有新的问题要问，新的谜题要解。