Are there not spots on the sun?
More French Proverbs:
One flower does not make a garland.French
You cannot have the bacon and the pig at the same time.
French
But for all that the honest man has not got his purse.
French
Who sows reaps.
French
When the devil says his paternosters he means to cheat you.
French
Try to reason about love, and you will lose your reason.
French