The title TEN PHILOSOPHICAL MISTAKES caught my eye because I recognized from the Encyclopedia Brittanica's GREAT BOOKS of the Western World series Mortimer J. Adler. His "How to Read a Book" was a wonderful book I had been given by my favorite teacher in school.
Do you own a copy of the EB Great Books, Terry? I have both an early 50s Encyclopedia and also the Great Books, thanks to my grandparents.
I would otherwise never have known anything about such authors as Blaise Pascal, even having heard the name Pascal in computer education. I often quote Karl Marx to our socialists here - that is where my copy of Marx came from. I just engaged in a discussion about the Electoral College on another forum - and yes, again - I could quote Alexander Hamilton because I owned a copy of The Federalist. I probably only got through Latin class because it contained a copy of Virgil that translated the Aeneid.
It is a wonderful asset. I think everyone should own these even in these days of the internet. They should be cheap enough on disk.