最伟大的真理常常是我们无法用语言表达的。
The greatest truths are often the ones we cannot put into words.
计算理论的美在于它能够将世界的复杂性抽象成可管理和可理解的模型。
You don't get over a loss like that; you learn to live with it.
The most important thing in a program is the data structure.