Final answer:
Quintilian emphasized the importance of moral character and virtuous behavior in the field of rhetoric.
Step-by-step explanation:
Quintilian, who was a Roman rhetorician and philosopher, did not specifically address ethics in his works. However, he did emphasize the importance of moral character and virtuous behavior in the field of rhetoric. He believed that a good orator should not only possess eloquence and speaking skills, but also exhibit integrity, honesty, and a commitment to ethical principles. Quintilian argued that ethics and rhetoric were intertwined, and that persuasive communication should be governed by moral values and social responsibility.