A fool's mouth is his destruction.
Huò cóng kǒu chū.
祸从口出。

A forced kindness deserves no thanks.
Miǎnqiáng de shàn xíng bù zhíde gǎnxiè.
勉强的善行不值得感谢。

A fox may grow grey but never good.
Jiāngshān yì gǎi, běnxìng nán yí.
江山易改，本性难移。

Huànnán jiàn zhēnqíng.
A friend in need is a friend indeed.
患难见真情。

A full purse never lacks friend.
Yǒu qián yǒu jiǔ, bì yǒu péngyǒu.
有钱有酒，必有朋友。

A golden key opens every door.
Qián néng tōngshén.
钱能通神。

A good husband makes a good wife.
Fū shàn zé qī xián.
夫善则妻贤。

A good medicine tastes bitter.
Liángyào kǔkǒu.
良药苦口。

A good name is sooner lost than won.
Měiyù yì shī nán dé.
美誉易失难得。

A good tale is none the worse for being told twice.
Dòngrén de gùshì lìng rén bǎitīng búyàn.
动人的故事令人百听不厌。

A hedge between keeps friendship green.
Jūnzǐ zhī jiāo dàn rú shuǐ.
君子之交淡如水。

A honey tongue, a heart of gall.
Zuǐtián rú mì, xīnhēi rú qī.
嘴甜如蜜，心黑如漆。