…his perception and his memory were infallible.

We, in a glance, perceive three wine glasses on the table; Funes saw all the shoots, clusters and grapes of the vine. He remembered the shapes of the clouds in the south at dawn on the 30th of April of 1882, and he could compare them in his recollection with the marbled grain in the design of a leather-bound book, which he had seen only once, and with the lines in the spray which an oar raised in the Rio Negro on the eve of the battle of Quebracho. These recollections were not simple; each visual image was linked to muscular sensations, thermal sensations, etc. He could reconstruct all his dreams, all his fancies. Two or three times he had reconstructed an entire day.

[…]

A circumference on a blackboard, a rectangular triangle, a rhomb, are forms which we can fully intuit; the same held true with Ireneo for the tempestuous mane of a stallion, a herd of cattle in a pass, the ever-changing flame or the innumerable ash, the many faces of a dead man during the course of a protracted wake. He could perceive I do not know how many stars in the sky.