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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.
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。
If you skillfully follow the multidisciplinary path, you will never wish to come back.It would be like cutting off your hands.
心理学必须是一门关于事实的科学,而非理论。
释义:知足常乐的人会感到快乐,没有欲望没有追求的人会感到轻松。