The first was from Warren Buffett's partner, Charlie Munger:

On the importance of reading: "In my whole life, I have known no wise people (over a broad subject matter area) who didn't read all the time — none, zero… You'd be amazed at how much Warren reads — at how much I read. My children laugh at me. They think I'm a book with a couple of legs sticking out."  –Charlie Munger's Worldly Wisdom   

The second commentary was from Barton Biggs:

"Reading is definitely  my thing, too and I think you have to read not just business stuff but also history, novels, and even some poetry. Investing is about glimpsing, however dimly, the ebb and flow of human events. It's very much about breasting the tides of emotion, too, which is where the novels and poetry come in. Besides, sometimes you have to refresh your mind and soul by consuming some crafted, eloquent writing." –Hedgehogging