Do as the Romans do(or Do as they do at Rome). 入乡要随俗。
Do as you would be done by. 推己及人。
Do business, but be not a slave to it. 要做事，但不要做事务的奴隶。
Dog does not eat dog. 物不伤其类。
Dogs that bark at a distance bite not at hand. 远处叫得凶的狗，不会近身来咬人。
Dogs that run after many hares kill none. 多谋寡成。
Dogs wag their tails not so much in love to you as your bread. 狗摇尾巴，爱的是面包。
Doing is better than saying. 行胜于言。
Do in Rome as the Romans do. 入乡随俗。
Do not all you can, spend not all you have; believe not all you hear; and tell not all youknow. 不要为所能为，不要花尽所有，不要全信所闻，不要言尽所知。
Do not cut down the tree that gives you shade. 不要忘恩负义。
Do not despise your enemy. 万勿轻敌。
Do not give a dog bread every time he wags his tail. 不要有求必应。
Do not praise a day before sunset. 切勿褒贬过早。
Do not run too fast after gain. 不要见利就拼命追。
Do not speak of your happiness to one less fortunate than yourself. 不要向不如你幸运的人述说你的幸福。
Do not swap horses when crossing a stream. 处在危难中，不宜大更动。
Do no through fear of poverty surrender liberty. 不要因为怕贫苦而放弃自由。
Do not to others what you do not wish them to do to you. 己所不欲，勿施于人。
Do not wash dirty linen in public. 家丑不可外扬。
Don't cast out the foul water till you bring in the clean. 清水未来，莫泼赃水。
Don't count your chicken before they are hatched. 不要过早乐观。
Don't climb a tree to look for fish. 勿缘木求鱼。
Don't cross the bridge till you get to it. 不要杞人忧天。
Don't fly till you wings are feathered. 羽毛未丰不要飞。
Don't cry out before you are hurt. 还没受苦，就别叫苦。
Don't halloo till you are out of the wood. 没有脱离危险不要先欢呼。
Don't have thy cloak to make when it begins to rain. 切莫临时抱佛脚。
Don't keep all your eggs in one basketball.勿孤注一掷。
Don't put off till tomorrow what should be done today. 今日事，今日毕。
Don't speak all you know, but know all you speak. 不要尽言所知，而要尽知所言。
Don't teach your grandmother to suck eggs. 休要班门弄斧。
Don't throw out your dirty water before you get in fresh. 清水未打来，赃水莫倒掉。
Don't trouble trouble until trouble troubles you. 不要自寻烦恼。
Don't whistle until you are out of the wood. 没有脱离险境，不要过早高兴。
Do one's level best. 尽力而为。
Dot the i's and cross the t's. 一点一划，循规蹈矩。
Doubt is the key of knowledge. 怀疑乃知识的钥匙。
Do well is better than say well. 说得好不如做得好。
Downy lips make thoughtless slips. 嘴上没毛，办事不牢。
Draw not your bow till your arrow is fixed. 事未齐备，切莫妄动。
Draw water with a sieve. 竹篮子打水一场空。
Dream are lies. 梦不足信。
Dreams go by contraries. 梦想总与现实相反。
Drive your business, do not let it drive you. 要推动事业，不要让事业来推动你。
Drop by drop the oceans are filled; stone by stone the walls are built. 滴水汇大海，垒石诛高墙。
Drowning man will catch at a straw. 溺水的人一根草也要抓。
Drunken days have all their tomorrows. 今日花天酒地，明日潦倒穷途。
Drunkenness reveals what soberness conceals. 酒后露真言。
Dumb dogs are dangerous. 哑犬最凶恶。
Dying is as natural as living. 死亡与生存一样自然。
E
Each bird loves to hear himself sing. 鸟儿都爱听自己唱歌。
Each day brings its own bread. 天无绝人之路。
Each man is the architect of his own fate. 命运掌握在自己手中。
Eagles catch no flies. 大人物不计较小事情。
Eagles fly alone, but sheep flock together. 鹰单飞，羊群集。
Early mistakes are the seeds of future trouble. 早期的错误可以酿成日后的麻烦。
Early sow, early mow. 播种早的收获早。
Early start makes easy stages. 早开始是成功的保证。
Early to bed and early to rise make a man healthy, wealthy and wise. 早睡早起，令人健康、富有而且聪明。
Early wed, early dead. 早婚早夭。
Easier said than done. 说话容易做事难。
East or west, home is best. 在家千日好，出门时时难。
Easy come, easy go. 易得易失。