"As a result of overdiversification, their (active managers) returns get watered down. Diversification covers up ignorance. Active managers haven't done enough research into any of their companies. If managers have 200 positions, do you think they know what's going on at any one of those companies at this moment?"

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Successful people are usually more lively than those who are unsuccessful. The quickening of the spirit they feel comes out of their creativity, and success detaches them from the more rigid outlook on life - it puts them in the flow. So the shakers and movers, by their very nature, are moving faster, taking more risks, and investing more in the world than their less active counterparts.

— Stuart Wilde