On Drunkenness (165-168)

Of these daughters of his the elder may be called Counsel, and the younger may be named Assent, for assent follows upon taking counsel; but no one after he has assented still takes counsel. Accordingly the mind, when it has taken its seat in its council chamber, begins to put its daughters in motion; and with the elder one, namely, Counsel, it begins to consider and investigate everything; and with the younger one, Assent, it begins easily to assent to the circumstances that arise, and to embrace what is hostile as though it were friendly, if they only present ever so slight an attraction of pleasure from this source.

But sober reasoning does not admit these things, but only that reasoning does so which is overcome with wine, and, as it were, drunk.

for the great darkness which is spread over all existing bodies and things does not permit one to see the real nature of each thing, but even if any one, under the influence of immoderate curiosity or of a real love of learning, wishes to emerge from ignorance and to obtain a closer view, he, like people wholly deprived of sight, stumbling over what is before his feet, will fall, and so get behind hand before he can lay hold of anything; or else, snatching at something with his hands, [*]

For even if education, holding a torch to the mind, conducts it on his way, kindling its own peculiar light, it would still, with reference to the perception of existing things, do harm rather than good; for a slight light is naturally liable to be extinguished by dense darkness, and when the light is extinguished all power of seeing is useless.