There is a close logical connection between the concept of a safety margin and the principle of diversification.
Benjamin GrahamIf fees consume more than 1% of your assets annually, you should probably shop for another adviser.
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 GrahamReal investment risk is measured not by the percent that a stock may decline in price in relation to the general market in a given period, but by the danger of a loss of quality and earnings power through economic changes or deterioration in management.
Benjamin GrahamIt 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 Graham