Clinton Carnegie at the Guitar Column shares some guitar tips from an unlikely source in his post 10 Warren Buffett Quotes and What They Could Mean for Guitar Players,
"I've been a Warren Buffett fan for a couple of years now. Heads of State seek him out for advice, and financial institutions hang on to his every word... I submit for your perusal, 10 quotes of Warren Buffet's that every guitar player and musician could take and run with. See what they can do for you." -- Clinton Carnegie, The Guitar Column
My personal favourite,
"I don't look to jump over 7-foot bars: I look around for 1-foot bars that I can step over."
That one reminds me that I don't have to master a huge new piece with lots of new technical challenges to get better. There are lots of easy, simple, little things I can do to improve my guitar playing. If you step over enough of those little 1-foot improvements the big 7-foot ones will take care of themselves...