they do here give a positive definition, and assert a positive dogma. But they reply to these objectors; as to the things which happen to us as men, we admit the truth of what you say; for we certainly do know that it is day, and that we are alive; and we admit that we know many other of the phænomena of life. But with respect to those things as to which the dogmatic philosophers make positive assertions, saying that they are comprehended, we suspend our judgment on the ground of their being uncertain; and we know nothing but the passions; for we confess that we see, and we are aware that we comprehend that such a thing is the fact; but we do not know how we see, or how we comprehend. Also, we state in the way of narrative, that this appears white, without asserting positively that it really is so. And with respect to the assertion, “We define nothing,” and other sentences of that sort, we do not pronounce them as dogmas. For to say that is a different kind of statement from saying that the world is spherical; for the one fact is not evident, while the other statements are mere admissions.
While, therefore, we say that we define nothing, we do not even say that as a definition.
Again, the dogmatic philosophers say that the Sceptics overthrow all life, when they deny everything of which life consists. But the Sceptics say that they are mistaken; for they do not deny that they see, but that they do not know how it is that they see. For, say they, we assert what is actually the fact, but we do not describe its character. Again, we feel that fire burns, but we suspend our judgment as to whether it has a burning nature. Also, we see whether a person moves, and that a man dies; but how these things happen we know not. Therefore, say