John C. Bogle and William Bernstein define "enough" and suggest another golden rule: never confuse your self-worth with your net worth. Knowing Enough combines the penetrating insights into investing and life of John C. Bogle, the founder of Vanguard and the pioneer of index investing, and the priceless practical advice of William J. Bernstein, bestselling author of The Four Pillars of Investing and market historian...