The only freedom which deserves the name is that of pursuing our own good in our way， so long as we do not attempt to deprive others of theirs or impede their efforts to obtain it.
The best way to learn something is to teach it.
痛苦是净化灵魂的火焰。
任何一种成瘾都是恶习，无论是对酒精、吗啡或理想的成瘾。
人类的思想是如此复杂，事物之间是如此纠缠，以至于要解释一片草叶，就必须绘制宇宙的图表。
The most important single aspect of software development is to be clear about what you are trying to build.