Le silence est l'esprit des sots
Et l'une des vertus du sage.
The author info is from Wikipedia, licensed under the GNU Free Documentation License. The original picture is by unknown author from the book Poésies (édition de 1824) via the Bibliothèque municipale de Semur-en-Auxois, Public domain, via Wikimedia Commons and has been cropped and converted to greyscale.