He had a great reputation as an orator, and is characterized by Ennius as "the quintessence of persuasiveness" (suadae medulla).
In his persuasiveness as an orator and his charming personality lay the secret of his power.
Its natural form is the aphorism, and to this and to its epigrammatic brilliance, vigour, and uncompromising revolt against all conventions in science and conduct it owes its persuasiveness.
Undoubtedly, there are more non-profits than grants available, and so courses should focus on both the quality and persuasiveness of your writing.