"Silence is the only language that cannot be misinterpreted."
I don't regret the things I've done, I regret the things I didn't do.
释义：人的本质以忠诚和守信为美好，道德以喜好学习为极致。
出自春秋·鲁·孔子《论语》。孔子杜绝了四种弊病，不妄意，不妄下决断，不固执，不以自我为中心。