A bold attempt is half success． 大胆的尝试等于一半成功。 A contented mind is a perpetual feast． 知足常乐。 A contented mind is always rich． 知足常富。 A life without a friend is a life without a sun． 人生没有朋友，犹如人生没有太阳。 Action speak louder than words． 行动比语言更响亮。／行动胜于言词。 Adversity is a good discipline． 逆境成才。 Adversity leads to prosperity． 逆境是通向成功之路。 A good beginning is half the battle． 良好的开端等于成功的一半。 A good example is the best sermon． 身教重于言教。 A life without a purpose is a ship without s rudder． 人生无目的，犹如船失舵。 A little(small)leak will sink a great ship． 千丈之堤溃于蚁穴。 All are not friends that speak us fair． 说我们好话的未必都是朋友。 All is not gold that glitters． 闪光的未必皆是金子。 All roads lead to Rome． 条条道路通罗马。 All things are difficult before they are easy． 万事开头难。 All things are easy to industry；all things difficult to sloth． 勤劳诸事易，懒惰万事难。 All things will come round to him who will but wait． 只要耐心等待，一切都会如期到来。An eye finds more truth than two ears． 百闻不如一见。 An idle youth，a needy age． 少壮不努力，老大徒伤悲。 An inch in a miss is as good as an ell． 为山九仞，功亏一篑。 A stitch in time saves nine． 亡羊补牢，贵在及时。 A true friend is known in the day of adversity． 苦难才能看出真正的朋友。 Birds of a feather flock together． 一丘之貉。Oil and water don t mix． 水火不相容。 Believe not all that you see nor half what you hear． 过耳之言，未可尽信。 Better early than late． 宁早勿迟。 Be slow choosing a friend；slower in chaning． 择友宜慎，弃友更宜慎。 Better be the head of an ass than the tail of a horse． 宁为鸡头，不为凤尾。 Out of sight，out of mind． 眼不见心不烦。 Bitter pills may have wholesome effects． 良药苦口利于病。 Business is business． 公事公办。 Business before pleasure． 先苦后甜／先办正事。 By uniting we stand；by dividing we fall． 团结则昌，分裂则亡。