Literature isn’t a moral beauty contest. Its power arises from the authority of a voice, not the purity of a soul.

Mathematics is the most beautiful and most powerful creation of the human spirit.

书会说：她这么做是因为。生活说：她这么做了。书是向你解释事情的地方；生活是事情没有解释的地方。

剑鞘保护剑的锋利，自己却满足於它自己的迟钝。

The real moral test of a society is how it treats those who are at the dawn of life, the children; those who are in the twilight of life, the aged; and those who are in the shadow of life, the sick, the needy and the handicapped.