Innovation happens when technology meets real needs.
Freedom does not consist in any dreamt-of independence from natural laws, but in the knowledge of these laws, and in the possibility this gives of systematically making them work towards definite ends.
数学中最重要的是理解概念，而不仅仅是记忆公式。
我不是榜样，我只是一个说唱的人。
Some programming languages manage to absorb change, but withstand progress.