I earnestly wish to point out in what true dignity and human happiness consists.
Do just once what others say you can't do, and you will never pay attention to their limitations again.
解释:货卖完了才知道不足,是由于不懂得计量;事情结束了才知道有余,是由于不懂得调节。
Innovation without execution is just an idea.
The poet is a man who plants a tree and then sits in its shade.