It is our argument that a sufficiently low price can turn a security of mediocre quality into a sound investment opportunity - provided that the buyer is informed and experienced and he practices adequate diversification. For, if the price is low enough to create a substantial margin of safety, the security thereby meets our criterion of investment.
Benjamin GrahamAvoid second-quality issues in making up a portfolio unless they are demonstrable bargains.
Benjamin GrahamInvesting isn't about beating others at their game. It's about controlling yourself at your own game.
Benjamin Graham