The best investors in the world, whether it be Ray Dalio or Warren Buffett, know that the secret to successful investing is asset allocation, said Tony Robbins, author of Money: Master the Game. 'Most hedge fund managers are not keeping up with the market at this stage and so you have to evaluate effectively based on your needs and your goals,' said Robbins. 'But I think you need a fiduciary who is not here to sell you anything, who has an extraordinary track record who can find the right asset allocation for you at this stage in your life.' Robbins' bestseller Money: Master the Game is now available on paperback after selling more than half a million copies in hardcover in the past year. The books offers financial advice based on Robbins' interviews with 50 of the most successful financial figures in the world, including Warren Buffet, Vanguard's John Bogle, legendary trader Paul Tudor Jones and Bridgewater Associates' Ray Dalio.