树木是圣哲。

财富青睐有准备的头脑。

"Memory is the diary we all carry about with us."

When a person realizes he has been deeply heard, his eyes moisten. I think in some real sense he is weeping for joy. It is as though he were saying, "Thank God, somebody heard me. Someone knows what it's like to be me."

学习数学的唯一方法就是做数学。

时间是那些只有智慧作为财富的人的唯一资本。

The greatest enemy of a good plan is the dream of a perfect plan.