更改规格以适合程序要容易得多,反之亦然。
The question you should be asking isn't, "What do I want?" or "What are my goals?" but "What would excite me?"
挑战在于创建能够将私人激励与知识的社会价值相结合的机构。
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。
可持续性是畜牧养殖的唯一前进道路——没有其他选择。