Losses make you studious, not profits.

History is, above all else, the creation and recording of that heritage; progress is its increasing abundance, preservation, transmission, and use.

变化的大引擎——技术。

The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.

做出伟大工作的唯一方法就是热爱你所做的事。

数学的语言是普遍的，超越了文化和语言的障碍。