You must not throw stones into your neighbor’s garden.
More French Proverbs:
One can't make head or tail of it.French
Great thieves always have their sleeves full of gags.
French
Weather, wind, women, and fortune change like the moon.
French
Only a fool gets drunk from his own bottle.
French
It will not out of the flesh that is bred in the bone.
French
The two make a pair.
French