Prevent condemnation

切記，當對方不承認自己的錯誤時，你不要斥責他。只有愚蠢的人，才會在這時責備別人，聰明人絕對不會這樣做，他會試著了解、原諒對方。

Remember that other people may be totally wrong. But they don't think so. Don't condemn them. Any fool can do that. Try to understand them. Only wise, tolerant, exceptional people even try to do that.

Dale Carnegie <A Formula That Will Work Wonders For You>