Don't claim to know what you don't know.不要不懂装懂。
Don't have too many irons in the fire.不要揽事过多。
Don't make a mountain out of a molehill.不要小题大做。
Don't put off till tomorrow what should be done today.今日事，今日毕。
Don't put the cart before the horse.不要本末倒置。
Don't trouble trouble until trouble troubles you.不要自找麻烦。
Don't try to teach your grandmother to suck eggs.不要班门弄斧。
Do well and have well.善有善报。
Each bird love to hear himself sing.孤芳自赏。
Early to bed and early to rise makes a man healthy, wealthy and wise.早睡早起身体好。
Easier said than done.说得容易，做得难。
Easy come, easy go.来也匆匆，去也匆匆。
Eat to live, but not live to eat.人吃饭是为了活着，但活着不是为了吃饭。
Empty vessels make the greatest sound.实磨无声空磨响，满瓶不动半瓶摇。
Envy has no holidays.忌妒之人无宁日。
Even Homer sometimes nods.智者千虑，必有一失。
