我们要做海洋的守护者，而不是掠夺者。

质量从来不是偶然的；它始终是智慧努力的结果。

每一个数学问题都是一个等待解决的谜题，每一个解决方案都是迈向更深入理解的一步。

One tells as few lies as possible only by telling as few lies as possible, and not by having the least possible opportunity to do so.

The only thing that can make a difference is love.