数学的本质不是把简单的事情复杂化，而是把复杂的事情简单化。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
电影的美在于它让我们能够通过别人的眼睛看世界。
Give the pupils something to do, not something to learn; and the doing is of such a nature as to demand thinking; learning naturally results.
你的声誉是你最重要的货币，要坚决保护它。