My experience is that short sellers do far better analysis than long buyers because they have to. The market is biased upward over time-as the saying goes, stocks are for the long run.

The trick of successful investors is to sell when they want to, not when they have to.

We suppose that could be considered a hedged position for the awards committee, one that would never occur in the hard sciences such as physics and chemistry, where a prize shared among three with divergent views would be an embarrassing mistake or a bad joke. While a Nobel Prize might well be the culmination of a life’s work, shouldn’t the work accurately describe the real world?

Short-term performance envy causes many of the shortcomings that lock most investors into a perpetual cycle of underachievement. Watch your competitors not out of jealousy but out of respect and focus your efforts not on replicating others' portfolios but on looking for opportunities where they are not. The only way for investors to significantly outperform is to periodically stand far apart from the crowd, something few are willing, or able, to do.

Be focused on process and not outcome

If you are predisposed to be patient, disciplined and psychologically appreciate the idea of buying bargains, then you're likely to be good at it. If you have a need for action, if you want to be involved in the new and exciting technological breakthroughs of our time, that's great, but you're not a value investor, and you shouldn't be one.

In investing it is never wrong to change your mind. It is only wrong to change your mind and do nothing about it.