文章贵在有实质内容,言辞必须出自自己的思考。
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。
Leadership is about making tough decisions today that will benefit generations tomorrow.
Necessity knows no law.
The uniform, constant, and uninterrupted effort of every man to better his condition, the principle from which public and national as well as private opulence is originally derived.