Keep thing seven years and you will find a use for it.备而不用.

Keep your breath to cool your porridge.少管闲事.

Keep your eyes wide open before marriage, and half shut afterwards.婚前张开眼，婚后半闭月.

Keep your mouth shut and your ears open.多听少讲。

Keep your mouth shut and your eyes open.要多看少说.

Keeping is harder than winning.创业不易，守业更难.

Kill the goose that laid the golden egg.杀鸡取蛋

Kill two birds with one stone.一箭双雕。

Kind hearts are more than coronets.善良的心灵胜于显贵的地位.

Kind hearts are the gardens; kind thoughts are the roots; kind words are the flowers; kind deeds are the fruits.善良的心是花园，善良的思想是根径，善良的话语是花朵，善良的行动就是果子。

Kind words are the music of the world.善言是世上的音乐.

Kind words are worth much and cost little.口头方便不费力.

Kind words butter no parsnips.画饼充饥.

Kindness always begets¹ kindness.善有善根.

Kindness is the golden chain by which society is bound² together.善良是连结社会的金链.

Kindness is the language that the deaf can hear and the dumb³ understand.善良为语言，聋子能天见哑巴懂心间.

Kindness is the sunshine of social life.仁慈是社会生活