XXXVII. The power of speech in the attainment of propriety is great, and its function is twofold: the first is oratory; the second, conversation. Oratory is the kind of discourse to be employed in pleadings in court and speeches in popular assemblies and in the senate; conversation should find its natural place in social gatherings, in informal discussions, and in intercourse with friends; it should also seek admission at dinners. There are rules for oratory laid down by rhetoricians; there are none for conversation; and yet I do not know why there should not be. But where there are students to learn, teachers are found; there are, however, none who make conversation a subject of study, whereas pupils throng about the rhetoricians everywhere. And yet the same rules that we have for words and sentences in rhetoric will apply also to conversation. *133* Now since we have the voice as the organ of speech, we should aim to secure two properties for it: that it be clear, and that it be musical. We must, of course, look to nature for both gifts. But distinctness may be improved by practice; the musical qualities, by imitating those who speak with smooth and articulate enunciation. There was nothing in the two Catuli to lead one to suppose that they had a refined literary taste; they were men of culture, it is true; and so were others; but the Catuli were looked upon as the perfect masters of the Latin tongue. Their pronunciation was charming; their words were neither mouthed nor mumbled: they avoided both indistinctness and affectation; their voices were free from strain, yet neither faint nor shrill. More copious was the speech of Lucius Crassus and not less brilliant, but the reputation of the two Catuli for eloquence was fully equal to his. But in wit and humour Caesar, the elder Catulus's half-brother, surpassed them all: even at the bar he would with his conversational style defeat other advocates with their elaborate orations. If, therefore, we are aiming to secure propriety in every circumstance of life, we must master all these points. #Conversation as an art.# *134* Conversation, then, in which the Socratics are the best models, should have these qualities. It should be easy and not in the least dogmatic; it should have the spice of wit. And the one who engages in conversation should not debar others from participating in it, as if he were entering upon a private monopoly; but, as in other things, so in a general conversation he should think it not unfair for each to have his turn. He should observe, first and foremost, what the subject of conversation is. If it is grave, he should treat it with seriousness; if humorous, with wit. And above all, he should be on the watch that his conversation shall not betray some defect in his character. This is most likely to occur, when people in jest or in earnest take delight in making malicious and slanderous statements about the absent, on purpose to injure their reputations.