Most people buy stocks hoping they'll go up next week. Warren Buffett says that's the wrong mindset entirely.The billionaire investor believes stocks should be treated like ownership in real businesses, not short-term bets. Instead of obsessing over daily price moves, Buffett focuses on what a company could be worth 10 to 20 years from now. He's even said he hopes stocks fall after he buys them so he can accumulate more shares at cheaper prices. It's a strategy built on patience, conviction, and