He does not guard himself well who is not always on his guard.
More French Proverbs:
Being loved is the best way of being useful.French
Wine will not keep in a foul vessel.
French
He who teaches, learns.
French
A vicious dog must be tied short.
French
He never did a good day's work who went grumblingly about it.
French
He, who more than he is worth doth spend, E'en makes a rope, his life to end.
French