"I am a beau in nothing but my books." – Adam Smith
"If I read a book that cost me $20 and I get one good idea, I’ve gotten one of the greatest bargains of all time." — Tom Peters
"The difference between where you are today and where you’ll be five years from now will be
found in the quality of books you’ve read." — Jim Rohn
The first one is from The Worldly Philosophers, a book I’m reading now which provides a nice overview of the major economists’ theories, and the final two are from the Personal MBA ChangeThis PDF.