“The essence of investment management is the management of risks, not the management of returns.”

Most of the time common stocks are subject to irrational and excessive price fluctuations in both directions as the consequence of the ingrained tendency of most people to speculate or gamble… to give way to hope, fear and greed.

It is worth pointing out that assuredly not more than one person out of a hundred who stayed in the market after after 1925 emerged from it with a net profit and that the speculative losses taken were appalling.

Rather should we say that the market is a voting machine, whereon countless individuals register choices which are the product partly of reason and partly of emotion.

Price statistics show clearly that instability in raw-material prices is a prime cause of instability of other prices.

No statement is more true and better applicable to Wall Street than the famous warning of Santayana: “Those who do not remember the past are condemned to repeat it”.

No matter how careful you are, the one risk no investor can ever eliminate is the risk of being wrong. Only by insisting on what Graham called the “margin of safety” – never overpaying, no matter how exciting an investment seems to be – can you minimize your odds of error.

Though business conditions may change, corporations and securities may change, and financial institutions and regulations may change, human nature remains the same.

Buy when most people, including experts, are pessimistic, and sell when they are actively optimistic.

Investing isn’t about beating others at their game. It’s about controlling yourself at your own game.

By refusing to pay too much for an investment, you minimize the chances that your wealth will ever disappear or suddenly be destroyed.

If I have noticed anything over these 60 years on Wall Street, it is that people do not succeed in forecasting what`s going to happen to the stock market.

The volume of credit depends upon three factors: the desire to borrow, the ability to lend and the desire to lend.

We urge the beginner in security buying not to waste his efforts and his money in trying to beat the market. Let him study security values and initially test out his judgment on price versus value with the smallest possible sums.

The thing that I have been emphasizing in my own work for the last few years has been the group approach. To try to buy groups of stocks that meet some simple criterion for being undervalued-regardless of the industry and with very little attention to the individual company.

In the old legend the wise men finally boiled down the history of mortal affairs into a single phrase: ‘This too will pass.’

Nearly everyone interested in common stocks wants to be told by someone else what he thinks the market is going to do. The demand being there, it must be supplied.

It is absurd to think that the general public can ever make money out of market forecasts.

The stock market resembles a huge laundry in which institutions take in large blocks of each others washing … without rhyme or reason.

A great company is not a great investment if you pay too much for the stock.

An investor calculates what a stock is worth, based on the value of its businesses.

The only thing you should do with pro forma earnings is ignore them.

Investing is most intelligent when it is most businesslike.

There is no reason to feel any shame in hiring someone to pick stocks or mutual funds for you. But there’s one responsibility that you must never delegate. You, and no one but you, must investigate whether an adviser is trustworthy and charges reasonable fees.

Even defensive portfolios should be changed from time to time, especially if the securities purchased have an apparently excessive advance and can be replaced by issues much more reasonable priced.