Molière Quote

GERONTE: But there was one little thing that puzzled me: the heart and the liver... the side they're on. I think you got them back to front. The heart is on the left side, and the liver on the right.
SGANARELLE: Yes, that used to be the case. But we've changed all that, and currently in medicine we are following the modern method.

Translated by W. Hannan, The Reluctant Doctor, Act II (p. 21), Heinemann Educational Books. 1963