Life is too short to wake up in the morning with regrets.
The best way to achieve long-term investment success is to focus on low-cost, broadly diversified index funds.
The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.