"I don't want to play in a game where the other guy has an advantage. I could spend all my time thinking about technology for the next year and still not be the 100th, 1,000th, or even the 10,000th smartest guy in the country in analyzing those businesses...... Different people understand different businesses. The important thing is to know which ones you do understand and when you're operating within your circle of competence."
-- Warren Buffett at Berkshire Hathaway's 1998 annual meeting