the other, 'Englishmen.' I mention this to your glory,—I, who am neither English nor human, having the honour to be a bear. Still more—I am a doctor. That follows. Gentlemen, I teach. What? Two kinds of things,—things which I know, and things which I do not know. I sell my drugs, and I sell my ideas. Approach and listen. Science invites you. Open your ear: if it is small, it will hold but little truth; if large, a great deal of folly will find its way in. Now, then, attention! I teach the Pseudoxia Epidemica. I have a comrade who will make you laugh, but I can make you think. We live in the same box, laughter being of quite as old a family as thought. When people asked Democritus, 'How do you know?' he answered, 'I laugh.' And if I am asked, 'Why do you laugh?' I shall answer, 'I know.' However, I am not laughing. I am a corrector of popular errors. I take upon myself the task of cleaning your intellects. They require it. Heaven permits people to deceive themselves, and to be deceived. It is useless to be absurdly modest. I frankly avow that I believe in Providence, even where it is wrong. But when I see filth (errors are filth) I brush it away. How am I sure of what I know? That concerns only myself. Every one catches wisdom as he can. Lactantius asked questions of, and received answers from, a bronze head of Virgil. Sylvester II. conversed with birds. Did the birds speak? Did the Pope twitter? That is a question. The dead child of the Rabbi Eleazer talked to Saint Augustin. Between ourselves, I doubt all these facts except the last. The dead child might perhaps talk, because under its tongue it had a gold plate, on which were engraved divers constellations. Thus he deceived people. The fact explains itself. You see my moderation. I separate the true from the false. See! here are other errors which
