You read a great deal about Darwin’s scientific method and meticulousness as a student of nature, but that’s not exactly scholarship.
As a young man Charles Darwin loved music, had a fondness for art, and appreciated fine literature.
Louis, obviously a bright young man, really does think this is sound reasoning.
"Consider that science is a portion of history but not the reverse."
As Alfred Russel Wallace observed, "Such a simple fact as the existence of flying fish [i.e., the Exocoetidae family] could never be proved, if Hume’s argument is a good one."