A bad penny always comes back.
惡有惡報。

A bad workman always blames his tools.
拙匠常怪工具差。

A bird in the hand is worth two in the bush.
一鳥在手勝於兩鳥在林。

A burnt child dreads the fire.
燒傷的孩子怕火。一朝被蛇咬，十年怕草繩。

A contented mind is a perpetual feast.
知足常樂。

A drowning man will catch at a straw.
病急亂投醫。

A fault confessed is half redressed.
肯認錯是改過的一半。

A friend in need is a friend indeed.
患難見真情。

A leopard cannot change his spots.
本性難移。

A little learning is a dangerous thing.
只知皮毛是件危險的事。