过犹不及
overdone is worse than underdone.
the archer who overshoots misses as well as he that falls short.
in excess nectar poisons.
he that makes a thing too fine breaks it.
eg：you must not push your way too hard in the world as overdone is worse than underdone.
中英俚语俗语来源：论语·先进：“过犹不及。”
同义词：失之过甚 carry too far.
反义词：聊胜于无 a little is better than none.
