Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。
任正非内部讲话稿
I think the best thing you can do is to be grateful for what you have.
Sustainability is not an option; it's a necessity for the future of our planet.
生活中最重要的事情是停止说“我希望”，开始说“我会”。
Pity, or compassion, is an emotion equally natural to all men.