'to think is to forget'

He was, let us not forget, almost incapable of ideas of a general, Platonic sort. Not only was it difficult for him to comprehend that the generic symbol dog embraces so many unlike individuals of diverse size and form; it bothered him that the dog at three fourteen (seen from the side) should have the same name as the dog at three fifteen (seen from the front). His own face in the mirror, his own hands, surprised him every time he saw them. Swift relates that the emperor of Lilliput could discern the movement of the minute hand; Funes could continuously discern the tranquil advances of corruption, of decay, of fatigue. He could note the progress of death, of dampness. He was the solitary and lucid spectator of a multiform, instantaneous and almost intolerably precise world. . . .

With no effort, he had learned English, French, Portuguese and Latin. I suspect, however, that he was not very capable of thought. To think is to forget differences, generalize, make abstractions. In the teeming world of Funes, there were only details, almost immediate in their presence.

—Jorge Luis Borges, "Funes, the Memorious" (The Paris Review, trans. James E. Irby 1962)