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 GrahamWe define a bargain issue as one which, on the basis of facts established by analysis, appears to be worth considerably more that it is selling for.
Benjamin GrahamSpeculative stock movements are carried too far in both directions, frequently in the general market and at all times in at least some of the individual issues.
Benjamin Graham