Berkshire Hathaway CEO Warren Buffett speaks to CNBC’s Becky Quick about this year’s shareholder meeting and his best long-term investing tip. For more of Warren Buffett’s wit and wisdom visit https://Buffett.CNBC.com » Subscribe to CNBC: http://cnb.cx/SubscribeCNBC About CNBC: From ‘Wall Street’ to ‘Main Street’ to award winning original documentaries and [...]