恶者传千里 Bad news travels quickly.
智者不惑 A wise man is free from perplexities.
无风不起浪 There is no smoke without free(where there is smoke,there is fire
为虎作伥 To act as guide to a tiger.
画蛇添足 To paint the lily.
奇装异服 A fantastic garb.
孤注一掷 To put all one's eggs in one basket.
忠言逆耳 Honest advice is unpleasant to the ear.
抛砖引玉 To throw out a minnow to catch a whale.
明辨是非 To distinguish right from wrong.
知足常乐 Happy is he who is content.
知足者富 He who feels contented is rich.
知人知面不知心 It's easy to know men's faces, but not their hearts.
知己知彼百战百胜 Know your enemy and know yourself.
空中楼阁 Castels in the air.
金科玉律 The golden rule.
为虎作伥 To act as guide to a tiger.
画蛇添足 To paint the lily.
孤注一掷 To put all one's eggs in one basket.
忠言逆耳 Honest advice is unpleasant to the ear.
抛砖引玉 To throw out a minnow to catch a whale.
明辨是非 To distinguish right from wrong.
知足常乐 Happy is he who is content.
知足者富 He who feels contented is rich.
知人知面不知心 It's easy to know men's faces, but not their hearts.
知己知彼百战百胜 Know your enemy and know yourself.
空中楼阁 Castels in the air.
金科玉律 The golden rule.
雨后春笋 Like bamboo shoots after a  spring shower.
勇者不惧 A brave man will not shrink from dangers.
洗心革面 To turn over a new leaf.
美中不足 A fiy in the ointment.
背道而驰 To run counter.
赴汤蹈火 To go through fire and water.
风烛残年 To have one foot in the grave.
风声鹤泪草木皆兵 To apprehend danger in every sound.
活到老学到老 It's never too late to learn.
前事不忘后事之师 Remember the past and it will guide your future.
星星之火可以燎原 A single spark can start a prairie fire.
害群之马 Black sheep.
家丑不外扬 Don't wash your dirty linen in public.
恩威并用 Alternate weakness with severity.
旁观者清 The outsider sees the best of the game.
时运不济 To have a bad time.
殊途同归 All roads lead to Rome.
回头浪子 The return of a prodigal.
先下手为强 Offence is the best defence(the best defence is offence.
同甘共苦 To share one's joys and sorrows.
因时制宜 To act according to circumstances.
有勇无谋 More brave than wise.
有备无患 Good watch prevents misfortune.
有志者事竟成 Where there's a will, there's a way.
江山易改本性难移 The child is father of the man.
百无一失 Not a single miss in a hundred times.
百闻不如一见 To see is to believe.
自力更生 To shift for oneself.
自讨苦吃 To make a rod for one's own back
吃得苦中苦方为人上人 If you wish to be the best man, you must be prepared to suffer the bitterest of the bitter.
弄巧成拙 Overreach oneself; overshoot oneself; overshoot the mark.
忍无可忍 To be at the end of one's patience.
忘恩负义 To kick down the ladder.
走马看花 A flying visit.
防患于未然 To nip a thing in the bud.
秀才不出门能知天下事 A scholar does not step outside his gate,yet he knows the happenings under the sun.