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数学不是一门演绎科学——那是陈词滥调。当你试图证明一个定理时,你不仅仅是列出假设然后开始推理。你所做的是反复试验、实验和猜测。
Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.
真相很少是纯粹的,也从来不简单。
Sun don't shine forever, but as long as it's here then we might as well shine together.
写作是唯一一个如果你赚不到钱也没人会觉得你可笑的职业。