Even with a margin of safety in the investor's favor, an individual security may work out badly. For the margin guarantees only that he has a better chance for profit than for loss - not that loss is impossible. But as the number of such commitments is increased the more certain does it become that the aggregate of the profits will exceed the aggregate of the losses.
Benjamin GrahamI am more and more impressed with the possibilities of history's repeating itself on many different counts. You don't get very far in Wall Street with the simple, convenient conclusion that a given level of prices is not too high.
Benjamin GrahamIf you are shopping for common stocks, choose them the way you would buy groceries, not the way you would buy perfume.
Benjamin GrahamThe ideal form of common stock analysis leads to a valuation of the issue which can be compared with the current price to determine whether or not the security is an attractive purchase.
Benjamin Graham