18. You have come in such large numbers to hear me that I feel I ought rather to congratulate Carthage for possessing so many friends of learning among her citizens than demand pardon for myself, the professed philosopher who ventures to speak in public. For the crowd that has collected is worthy of the grandeur of our city, and the place chosen for my speech is worthy of so great a multitude. Moreover, in a theatre we must consider, not the marble of its pavements, not the boards of the stage, nor the columns of the back-scene, nay, nor yet the height of its gables, the splendour of its fretted roofs, the expanse of its tiers of seats; we need not call to mind that this place is sometimes the scene for the foolery of the mime, the dialogue of comedy, the sonorous rant of tragedy, the perilous antics of the rope-walker, the juggler's sleight of hand, the gesticulation of the dancer, with all the tricks of their respective arts that are displayed before the people by other artists. All these considerations may be put on one side; all that we need consider is this, the discourse of the orator and the reasons for the presence of the audience. Wherefore, just as poets in this place shift the scene to various other cities--take, for instance, the tragic poet who makes his actor say _Liber, that dwellest on these heights august Of famed Cithaeron_ or the comic poet who says _Plautus but asks you for a tiny space Within the circuit vast of these fair walls, Whither without the aid of architect He may transport old Athens,--_