Demosthenes (384 BC - 322 BC) was a prominent Greek statesman and orator of ancient Athens, generally considered the greatest of the Greek orators.
Delivery, delivery, delivery.
Response when asked to name the three most important aspects of rhetoric, as quoted in "Demosthenes: Action on the political and forensic stage" by C. Cooper. in Oral Performance and its Context (2004) by C. J. MacKie, p. 154 ISBN 9004136800
The readiest and surest way to get rid of censure, is to correct ourselves.