I looked, Ahab, honest I did. But since there is no sin in cocoa, there just aren't the pithy quotations as there are for coffee and tea.
Cocoa? Cocoa! Damn miserable puny stuff, fit for kittens and unwashed boys. Did Shakespeare drink cocoa? ~Shirley Jackson
The superiority of chocolate (hot chocolate) both for health and nourishment, will soon give it the same preference over tea and coffee in America which it has in Spain... ~Thomas Jefferson
(On hot chocolate) It flatters you for a while, it warms you for an instant; then all of a sudden, it kindles a mortal fever in you. ~Marie, Marquise de Sevigne