你说得越多，就越有可能说些愚蠢的话。

Mathematics is the queen of the sciences.

Where parents do too much for their children, the children will not do much for themselves.

人类最大的敌人是自己。

记忆不是忠实的记录；它是对过去的主动重建。

面对挑战要迎难而上，把危机转化为发展机遇。