have no conceptions or ideas of what is evil in a rational creature, so their grand maxim is, to cultivate reason, and to be wholly governed by it. Neither is reason among them a point problematical, as with us, where men can argue with plausibility on both sides of the question, but strikes you with immediate conviction; as it must needs do, where it is not mingled, obscured, or discoloured, by passion and interest. I remember it was with extreme difficulty that I could bring my master to understand the meaning of the word opinion, or how a point could be disputable; because reason taught us to affirm or deny only where we are certain; and beyond our knowledge we cannot do either. So that controversies, wranglings, disputes, and positiveness, in false or dubious propositions, are evils unknown among the Houyhnhnms. In the like manner, when I used to