A good husband makes a good wife.
夫善则妻贤。

A hedge between keeps friendship green.
君子之交淡如水。

A light heart lives long.
静以修身。

All rivers run into sea.
海纳百川。

A man is known by his friends.
什么人交什么朋友。

What goes around comes around.
一报还一报。

Many things grow in the garden that were never sown there.
有心栽花花不发，无意插柳柳成荫。