Why is it that the analogy of similar things is not inference but direct perception?

Why is it that an analogy drawn between things of the same kind is not inference but direct perception? For example, all human beings certainly share common characteristics; any individual person certainly has something in common with humanity as a whole. There is no need to compare this person with others of the same kind in order to confirm that this person is indeed a human being and not of some other kind. A newborn infant, at the moment of birth, is known to be a human and not of another kind without any comparison; even in the mother's womb, it is already known that this child is a human and not of another kind. Such knowing is direct perception, not knowledge by inference.

Products made from the same mold all share the same features; knowing the features of one product, one knows the features of the others. This knowing is direct perception, not inference.

If one makes a comparison between things of the same kind and thereby knows the difference between the two, that is knowing by inference. For example, if one does not know whether a certain person is tall or short, one must compare that person with another person of standard height, or with the majority of people, before one can know—this is knowing by inference. But the result of this inferential knowledge may be correct or incorrect; that is to say, the result may be direct perception, or it may be erroneous cognition.

One who knows a person's height by inference is less intelligent than one who knows it by direct perception. With direct perception, upon meeting someone, one can judge immediately based on experience and wisdom, without needing to compare and measure. The need to compare and measure indicates a lack of the wisdom of direct perception—both one's observational and judgmental abilities are insufficient, so one has no choice but to resort to inference. If the result of one's direct-perception judgment does not accord with the facts, then it is not direct perception but erroneous cognition, which shows that one's wisdom is also insufficient; one may also be overly confident, and in that case one is not even as good as the person who uses inference and is modest and prudent.