The commentary relates “human” to the capacity for knowledge and writing. It is essential to distinguish having a capacity from actually exercising or possessing it.
Capable of knowledge: possessing the potential to learn.
Actually learned: already possessing knowledge.
Capable of writing: having the potential to learn writing.
The example concerns a necessary capacity, not the claim that every human is already learned or literate. Confusing potential with actuality distorts the implication.
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Six Kinds of Signification and the Three Modes of Verbal Convention
The commentary relates “human” to the capacity for knowledge and writing. It is essential to distinguish having a capacity from actually exercising or possessing it.
Capable of knowledge: possessing the potential to learn.
Actually learned: already possessing knowledge.
Capable of writing: having the potential to learn writing.
The example concerns a necessary capacity, not the claim that every human is already learned or literate. Confusing potential with actuality distorts the implication.