Hatred watches while friendship sleeps.
More French Proverbs:
To eat and drink, and sleep together, is marriage, methinks.French
A churl never liked a gentleman.
French
A woman like a horse needs spurs.
French
Men's skins have many colors, but human blood is always red.
French
He slumbers enough who does nothing.
French
There once was a good mother-in-law but the wolf gobbled her up.
French