"The only thing that is truly eternal is the human spirit."

The best solutions often come from those who work closest with the animals.

释义：不热衷打听他人的是非，不刻意关注别人的缺点，不传播他人的过错。

The past is a shadow that follows us, no matter how fast we run.

A good mathematician is one who can see analogies between theorems; a great mathematician is one who can see analogies between analogies.

作家是写作的人，读者是阅读的人。