Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的:它是关于理解的。
The more you know who you are, and what you want, the less you let things upset you.
我们必须在经济增长和环境管理之间取得平衡。
我不是榜样,我是榜样角色。
I don’t know where I’m going, but I’m on my way.