真相很少是纯粹的，也从来不是简单的。

The most effective debugging tool is still careful thought, coupled with judiciously placed print statements.

The key to successful investing is to have a clear understanding of the market, the risks involved, a disciplined approach, a long-term perspective, a strong understanding of the fundamentals, and a clear understanding of the risks and rewards.

The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.

数据库应该是现实的忠实模型，而不是对现实的扭曲。

重要的是不要停止提问。好奇心有其存在的理由。