The best way to create interest in a subject is to render it worth knowing, which means to make the knowledge usable.

The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land is yet to come.

我不是太阳，我是月亮。

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

在科学中最令人兴奋的短语，预示着新发现的，不是“我找到了！”而是“这很有趣...”

孔子说：“面对仁道，在老师面前也不要谦让。”