A fall into a pit,a gain in your wit.
吃一堑,长一智.
A fox may grow gray,but never good.
江山易改,本性难移.
A friend in need is a friend indeed.
患难见真情.
A friend is easier lost than found.
得朋友难,失朋友易.
A friend is never known till a man has need.
需要之时方知友.
A friend without faults will never be found.
没有十全十美的朋友.
'After you' is good manners.
“您先请”是礼貌.
A good beginning is half done.
良好的开端是成功的一半.
A good beginning makes a good ending.
善始者善终.
