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YYzai Dictionary is an easy-to-use and powerful online Chinese dictionary.Excellent translation:
A leopard cannot change its spots.积习难改。
A bad workman quarrels with his tools.
拙匠常怨工具差。（注解：技术拙劣的工人抱怨自己的工具。）
A horse stumbles that has four legs.
人有失手日，马有失蹄时。
A hero is nothing but a product of his time.
时势造英雄。
A little learning is a dangerous thing, but a lot of ignorance is just as bad.
知识浅薄是危险的，而无知同样糟糕。
