管理复杂性的关键在于关注组件之间的接口，而不是它们的内部细节。
The key to managing complexity is to focus on the interfaces between components, not their internal details.
模形式的算术是理解数论更深奥谜团的关键。
如果两个人编写的程序完全相同，则每个人都应放入微码中，然后他们肯定会不同。
Short-term debt can be dangerous because it creates the possibility of sudden runs.