What is the difference between maxim and proverb?
A maxim is a well-known saying that expresses a general truth or rule of conduct, ex: Look before you leap.

A proverb is a short well-known sentence or phrase that states a general truth about life or gives advice, ex: Better safe than sorry.
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Both state a general truth then? One gives a rule of conduct and the other gives advice? Stating rules of conduct and giving advice seem to have a huge overlap. Is there any other difference?