You learn something new every day! I can’t remember who told me the quote in the first panel, so I suppose this comic is a bit of a straw man argument… but even still, when I heard it said, I remember thinking to myself, “surely there are exceptions.” Like many, whenever I hear such a strong statement, I immediately try to figure out why it’s wrong. I don’t know why I think that way.
I should say that I generally agree with the sentiment! Learning is important and the second people don’t care to learn anymore, they start getting stuck in their ways, less reasonable, etc etc… I wouldn’t go so far as to say they lose their humanity, because I don’t think learning makes a person human (even if it’s a big part of the human experience).