"The most important thing in a book is the story. The illustrations are there to support and enhance the story, not to overshadow it."

解析：史与经的区别在于事与道。

——〈在北京湖广会馆学界欢迎会的演说〉，1912年8月30日

You can't go through life with a catcher's mitt on both hands. You need to be able to throw something back.

最好的性能改进是从非工作状态到工作状态的转变。

人工智能的未来在于理解大脑是如何工作的。

自然知识的改进者绝对拒绝承认权威。对他来说，怀疑主义是最高的责任；盲目信仰是不可饶恕的罪过。