Every risk is worth taking as long as it's for a good cause, and contributes to a good life.

Curiosity drives innovation, and persistence turns ideas into breakthroughs.

By used books. They have the same words as the new ones. Also libraries.

你看不见你自己，你所看见的只是你的影子。

软件开发中最重要的一个方面是明确你要构建什么。