(3) Base camp

Some of Marshall's phrasing is a little tough, but it's nothing you can't handle. 1940s English is pretty much the same as modern English…except adorable slang like chrome-dome (bald guy) or ducky shincracker (good dancer).

But Marshall isn't using any slang here: his intended audience was a bunch of notoriously square Harvard students. So he's using big words, but he's also trying to make a point, which means he's going to be as clear as he can be.