Because investors are not usually penalized for adhering to conventional practices, doing so is the less professionally risky strategy, even though it virtually guarantees against superior performance.
Seth KlarmanIf you can remember that stocks aren't pieces of paper that gyrate all the time --they are fractional interests in businesses -- it all makes sense.
Seth KlarmanBad things happen, but really bad things do not. Do buy the dips, especially the lowest quality securities when they come under pressure, because declines will quickly be reversed.
Seth KlarmanUnlike return, however, risk is no more quantifiable at the end of an investment that it was at its beginning. Risk simply cannot be described by a single number. Intuitively we understand that risk varies from investment to investment: a government bond is not as risky as the stock of a high-technology company. But investments do not provide information about their risks the way food packages provide nutritional data.
Seth Klarman