活到老，学到老。
13.All that glitters is not gold.
闪光的未必都是金子。
14.A journey of a thousand miles begins with a single step.
千里之行始于足下。
15.Look before you leap.
三思而后行。
16.Rome was not built in a day.
伟业非一日之功。
17.Great minds think alike.
英雄所见略同。
18.well begun,half done.
好的开始等于成功的一半。