Years ago I decided that if I would read a bunch of books of quotations, I'd be getting the very best content from some of the best minds in the world. This way, I could save myself the time needed to read the full books from which these quotes were taken.
While I still read tons of books, I have a big collection of great quotes. And I mean really great.
You know those huge books of 20,000 quotations? I've read those. And there's a lot of junk (filler) in them. Of course, you have to do a lot of searching to get to those real gems.
After a lot of searching, I put all the best ones into my OWN book of quotations, minus all the "filler". :)