Charlie Munger, vice chairman of Berkshire Hathaway, is often overshadowed by his colleague Warren Buffett. But if you're an ardent follower of the two, you'll know that the investment philosophy employed by Buffett and Berkshire can be attributed to Munger's influence. Rajen Devadason of Manulife Investment Management Malaysia Berhad, CEO of the consultancy RD WealthCreation tells us who Charlie Munger is and what are the lessons we can learn from him.