do it now.
機不可失，時不再來。
do nothing by halves.
凡事不可半途而廢。
don't claim to know what you don't know.
不要不懂裝懂。
don't have too many irons in the fire.
不要攬事過多。
don't make a mountain out of a molehill.
不要小題大做。
don't put off till tomorrow what should be done today.
今日事，今日畢。
don't put the cart before the horse.
不要本末倒置。
don't trouble trouble until trouble troubles you.
不要自找麻煩。
don't try to teach your grandmother to suck eggs.
不要班門弄斧。
do well and have well.
善有善報。
each bird love to hear himself sing.
孤芳自賞。
early to bed and early to rise makes a man healthy, wealthy and wise.
早睡早起身體好。
easier said than done.
說得容易，做得難。
easy come, easy go.
來也匆匆，去也匆匆。
eat to live, but not live to eat.
人吃飯是為了活著，但活著不是為了吃飯。
empty vessels make the greatest sound.
實磨無聲空磨響，滿瓶不動半瓶搖。
envy has no holidays.
忌妒之人無寧日。
even homer sometimes nods.
智者千慮，必有一失。
even reckoning makes long friends.
親兄弟，明算賬。
every advantage has its disadvantage.
有利必有弊。
everybody's business is nobody's business.
人人負責，等於沒人負責。
every day is not sunday.
好景不常在。
every dog has his day.
誰都有得意的時候。
every door may be shut, but death's door.
人生在世，唯死難逃。
every heart has its own sorrow.
各人有各人的苦惱。
every little helps a mickle.
聚沙成塔，集腋成裘。
every man for himself, and the devil takes the hindmost.
人不為己，天誅地滅。
every man has his faults.
金無足赤，人無完人。
every man has his hobbyhorse.
蘿蔔青菜，各有所愛。
every man has his weak side.
人人都有弱點。
every man is the architect of his own fortune.
自己的命運自己掌握。
every minute counts.
分秒必爭。
every mother's child is handsome.
孩子是自己的好。
every potter praises hit pot.
王婆賣瓜，自賣自誇。
everything is good when new, but friends when old.
東西是新的好，朋友是老的親。
example is better then percept.
說一遍，不如做一遍。
experience is the father of wisdom and memory the mother.
經驗是智慧之父，記憶是智慧之母。
experience must be bought.
吃一塹，長一智。
fact speak louder than words.
事實勝於雄辯。
failure is the mother of success.
false friends are worse than bitter enemies.
明槍易躲，暗箭難防。
far from eye, far from heart.
眼不見，心不煩。
far water does not put out near fire.
遠水救不了近火。
faults are thick where love is thin.
一朝情意淡，樣樣不順眼。
fear always springs from ignorance.
恐懼源於無知。
fields have eyes, and woods have ears.
隔牆有耳。
fire and water have no mercy.
水火無情。
fire is a good servant but a bad master.
火是一把雙刃劍。
first come, first served.
先來後到。
first impressions are half the battle.
初次見面，印象最深。
first think and then speak.
先想後說。
fools grow without watering.
朽木不可雕。
fool's haste is no speed.
欲速則不達。
fools has fortune.
呆人有呆福。
fools learn nothing from wise men, but wise men learn much from fools.
愚者不學無術，智者不恥下問。
forbidden fruit is sweet.
禁果格外香。
fortune favors those who use their judgement.
機遇偏愛善斷之人。