You have memorized the name of Allah, yet these veils and curtains
still remain.
You have studied and studied, yet your scholarship has only sharpened
your greed.
You have read hundreds of thousands of books, yet you have not
killed your cunning ego.
None but the Shaykhs can kill the inner thief, for it ravages the very
house in which it lives!
-Hazrat Sultan Bahu (rahmatullah alayh)
http://www.yursil.com/blog/2008/07/memorized-greed-sultan-bahu/