in fair weather prepare for foul.未雨绸缪
knowledge is power.知识就是力量
let bygones be bygone.既往不究
look before you leap.三思而后行
man proposes， god disposes.谋事在人，成事在天
money talks.金钱万能
no gains without pains.吃得苦中苦方为人上人
life is a horse, and either you ride it or it rides you.
人生像一匹马, 你不驾驭它, 它便驾驭你。
practice makes perfect.熟能生巧
living without an aim is like sailing without a compass.
生活没有目标就像航海没有罗盘。
silence is golden.献丑不如藏拙
we are here to add what we can to life, not to get what we can from it.
我们来到世上是为了尽自己所能给生活增加一些东西, 而不是为了从生活中获取我们所能得到的一切。-----w. osler 奥斯勒