ERASMUS

We see not a few mortals who, striving to emulate this divine virtue with more zeal than success, fall into a feeble and disjointed loquacity, obscuring the subject and burdening the wretched ears of their hearers with a vacant mass of words and sentences crowded together beyond all possibility of enjoyment. And writers who have tried to lay down the principles of this art have gained no other result than to display their own poverty while expounding abundance.

—Erasmus on "Preaching"