A fox smells its own lair first.
More English Proverbs:
Scratch a Russian and you will find a Tartar.English
Custom without reason is but ancient error.
English
Life liveth not in living, but in liking.
English
Ell and tell is good merchandise.
English
The citizen is at his business before the sun rises.
English
The afterthought is good for nought, except it be to catch blind horses with.
English