Real 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.

The function of the margin of safety is, in essence, that of rendering unnecessary an accurate estimate of the future.

there is a tendency in part of Wall Street people to pay excessive attention to the most recent figures and the present financial picture.

A stock is not just a ticker symbol or an electronic blip; it is an ownership interest in an actual business, with an underlying value that does not depend on its share price.

The most realistic distinction between the investor and the speculator is found in their attitude toward stock-market movements. The speculator's primary interest lies in anticipating and profiting from market fluctuations. The investor's primary interest lies in acquiring and holding suitable securities at suitable prices. Market movements are important to him in a practical sense, because they alternately create low price levels at which he would be wise to buy and high price levels at which he certainly should refrain from buying and probably would be wise to sell.

Evidently stockholders have forgotten more than to look at balance sheets. They have forgotten also that they are owners of a business and not merely owners of a quotation on the stock ticker. It is time, and high time, that the millions of American shareholders turned their eyes from the daily market reports long enough to give some attention to the enterprises themselves of which they are the proprietors, and which exist for their benefit and at their pleasure.

The art of investment has one characteristic that is not generally appreciated. A creditable, if unspectacular, result can be achieved by the lay investor with a minimum of effort and capability; but to improve this easily attainable standard requires much application and more than a trace of wisdom. If you merely try to bring just a little extra knowledge and cleverness to bear upon your investment program, instead of realizing a little better than normal results, you may well find that you have done worse.