. >>> warren buffett and charlie myunger have been business partners since . equally important to berkshire's growth. i recently sat down with two men in omaha about the secrets of working together. >> obviously, we like each other a lot. we have minds that work the same way to a great degree. we find the same things quite humorous. we find the things we deplore, we agree on. we've never had an argument. we've had lots of disagreements. whatever we disagree, charlie said, you'll end up agreeing with me because you're smart and i'm right. and the answer to that, 56 years of practice. and in fact, i would say every time with charlie, i've got at least some new idea that causes me we've had absolutely so much fun in the partnership over the years. it's been almost hilarious. it's been so much fun. >> you know, when we sat down, warren to charlie, you said to me, charlie being around makes me not only smarter but better. >> well, we both have the theory that hang around good people, always behave better every year you behave the previous year. and as in the world,