Every mathematical problem has a solution, but not every solution is immediately apparent.

这就是我的态度

成功是一种心态。

A society grows great when old men plant trees whose shade they know they shall never sit in.

The most dangerous phrase in aquaculture is: "This is how we've always done it."

Understanding inequality requires looking beyond averages.

回收应该是最后手段而非首选方案，更好的设计应该放在第一位。