Intelligence, in fact, is equivalent neither to the possession nor to the acquisition of prudence; but just as the learner in science is said to show intelligence when he makes use of the scientific knowledge which he hears from his teacher, so in the domain of prudence a man is said to show intelligence when he makes use of the opinions which he hears from others in judging, and judging fitly⁠—for soundly [when we speak of sound intelligence] means fitly.

And from this use of the term with regard to learning comes its employment to denote that faculty which we imply when we call a man intelligent; for we often speak of the intelligence of a learner.