The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.
数学的研究就像空气或重力——它无处不在，你看不到它，但你知道它在那里。
To study history is to learn the grammar of time.
我对愚蠢的人有极大的信心；我的朋友们称之为自信。
Silence is the language of God, all else is poor translation.
History is not the past. It is the method we have evolved of organizing our ignorance of the past.
虚假的幸福使人变得刻薄和傲慢，而这种幸福从不传播。真正的幸福使他们善良和明智，而这种幸福总是分享的。
财富地位如同浮云般虚幻，功名利禄像流水一样易逝。