The world is a book, and those who do not travel read only one page.

The key to solving complex problems is often to find the right abstraction that simplifies the problem without losing its essential features.

自由的秘诀是勇气。

我不喜欢妥协。我明白有时妥协是正确的答案，但妥协通常相当于失败，我不喜欢被击败。