Adding point after point until little by little we involve ourselves in utter irrelevancies

When we think that we have something of importance to say, we throw moderation to the winds, and go on adding point after point until little by little we involve ourselves in utter irrelevancies. Isocrates. Antidosis. Speech 15. Section 311.

Image: Statue of Cicero by Jean-Antoine Houdon at the Louvre in Paris.