The margin of safety is always dependent on the price paid. It will be large at one price, small at some higher price, nonexistent at some still higher price.
Benjamin GrahamMathematics is ordinarily considered as producing precise and dependable results; but in the stock market the more elaborate and abstruse the mathematics the more uncertain and speculative are the conclusions we draw there from. Whenever calculus is brought in, or higher algebra, you could take it as a warning that the operator was trying to substitute theory for experience, and usually also to give to speculation the deceptive guise of investment.
Benjamin GrahamThose with the enterprise lack the money and those with the money lack the enterprise to buy stocks when they are cheap.
Benjamin GrahamIn the financial markets, hindsight is forever 20/20, but foresight is legally blind. And thus, for most investors, market timing is a practical and emotional impossibility.
Benjamin Graham