数学不是关于数字、方程、计算或算法的：它是关于理解的。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
Premature optimization is the root of all evil.
The most successful businesses are those that combine strong financial performance with a positive impact on society.
诗歌不仅是一种艺术，它是一种生活方式。
我们想什么，就会成为什么。
The quality of ideas seems to play a minor role in mass movement leadership. What counts is the arrogant gesture, the complete disregard of the opinion of others, the singlehanded defiance of the world.
Never to suffer would never to have been blessed.
A well-designed system should be easy to use, easy to understand, and easy to modify.