True happiness comes from doing what you love.
真正的快乐来自于做自己喜欢的事。
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:它是关于理解的。
Democracy is a device that ensures we shall be governed no better than we deserve.
The writer’s duty is to tell the truth, even when it is uncomfortable.