To solve a mathematical problem is to uncover a piece of the universal puzzle.
The real and effectual discipline which is exercised over a workman is that of his customers.
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
——《在国民党成立大会上的演说》(1912年8月25日)
细节不是细节。它们成就了设计。