For some reason, I’m reminded of the passage from the opening of Augustine’s Confessions—in the true spirit of autobiography, he describes how he learned words and ideas as an infant by being shown extensional definitions:
13. Did I not, then, as I grew out of infancy, come next to boyhood, or
rather did it not come to me and succeed my infancy? My infancy did not
go away (for where would it go?). It was simply no longer present; and
I was no longer an infant who could not speak, but now a chattering
boy. I remember this, and I have since observed how I learned to speak.
My elders did not teach me words by rote, as they taught me my letters
afterward. But I myself, when I was unable to communicate all I wished
to say to whomever I wished by means of whimperings and grunts and
various gestures of my limbs (which I used to reinforce my demands), I
myself repeated the sounds already stored in my memory by the mind
which thou, O my God, hadst given me. When they called some thing by
name and pointed it out while they spoke, I saw it and realized that
the thing they wished to indicate was called by the name they then
uttered. And what they meant was made plain by the gestures of their
bodies, by a kind of natural language, common to all nations, which
expresses itself through changes of countenance, glances of the eye,
gestures and intonations which indicate a disposition and
attitude—either to seek or to possess, to reject or to avoid. So it
was that by frequently hearing words, in different phrases, I gradually
identified the objects which the words stood for and, having formed my
mouth to repeat these signs, I was thereby able to express my will.
Thus I exchanged with those about me the verbal signs by which we
express our wishes and advanced deeper into the stormy fellowship of
human life, depending all the while upon the authority of my parents
and the behest of my elders.
For some reason, I’m reminded of the passage from the opening of Augustine’s Confessions—in the true spirit of autobiography, he describes how he learned words and ideas as an infant by being shown extensional definitions: