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 GrahamTo enjoy a reasonable chance for continued better than average results, the investor must follow policies which are (1) inherently sound and promising, and (2) not popular on Wall Street.
Benjamin Graham