A man's life of any worth is a continual allegory.
Never stop learning—the moment you do, you fall behind.
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。
预测未来的最好方法就是去创造未来。
程序最重要的属性是它是否实现了用户的意图。