Evryone makes mistake, but it is a fool who makes same mistake! to learn from our mistakes, don't commit old mistake.

每个人都有犯错的时候，但只有傻瓜才会犯同样的错误！从错误中吸取教训，不要犯旧错。

It is bad to commit a mistake, but it is far worse to cling to it.

犯错误固然不好，但死抱着错误不改就更坏了。