Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

Your group can achieve great things way beyond your means simply by showing people that they are appreciated.

对我来说，编程不仅仅是一门重要的实用艺术。它也是知识基础中的一项巨大事业。

勤俭了就有了约束，有约束了就会各种好事都做；奢侈就放肆，放肆则各种坏事都泛滥。

你不是管理人；你是管理事物。你领导人们。