A brain is worth little without a tongue.
More French Proverbs:
With the help of an 'if' you might put Paris into a bottle.French
Little by little the bird builds its nest.
French
Great talkers are not great doers.
French
What comes from the fife goes back to the drum.
French
He slumbers enough who does nothing.
French
A beggar on his feet is worth more than an emperor in his grave.
French