江山易改，本性難移。
A friend in need is a friend indeed.
患難見真情。
A friend is easier lost than found.
得朋友難，失朋友易。
A friend is never known till a man has need.
需要之時方知友。
A friend without faults will never be found.
沒有十全十美的朋友。
‘After you‘ is good manners.
“您先請”是禮貌。
A good beginning is half done.
良好的開端是成功的一半。
A good beginning makes a good ending.
善始者善終。
A good book is a good friend.
好書如摯友。
A good book is the best of friends, the same today and forever.
一本好書，相伴一生。
A good conscience is a soft pillow.
不做虧心事，不怕鬼叫門。
A good fame is better than a good face.
美名勝過美貌。
A good husband makes a good wife.
夫善則妻賢。
A good medicine tastes bitter.
良藥苦口。
A good wife health is a man‘s best wealth.
妻賢身體好是男人最大的財富。
A great talker is a great liar.
說大話者多謊言。
A hedge between keeps friendship green.
君子之交淡如水。
A joke never gains an enemy but loses a friend.
戲謔不能化敵爲友，只能使人失去朋友。
A leopard cannot change its spots.
積習難改。