You may break a horse’s back, be he never so strong.
More English Proverbs:
Speaking of the devil.English
Let the bait hide the hook.
English
If the old dog barks, he gives counsel.
English
Pride costs us more than hunger, thirst, and cold.
English
The Devil's children have the Devil's luck.
English
The Peerage is the Englishman's Bible.
English