Mencius - Book 4, Part 1, Chapter 25

Mencius, addressing the disciple Yo-chang, said to him, 'Your coming here in the train of Tsze-âo was only because of the food and the drink. I could not have thought that you, having learned the doctrine of the ancients, would have acted with a view to eating and drinking.'
~ James Legge translation via nothingistic.org ~

Go here to read the introductory post to this serialized version of the Works of Mencius.