All last week it felt as if the sky was finally falling on Wall Street. Socialists around the world were ecstatic over what they perceived to be the final downfall of capitalism. The Dow 500 recorded 3-digit losses from 8 days in a row (a record) and on day fell more than 700 points (also a record). Several trillion, including over 2 trillion in retirement savings, were washed away in the panic. But it just that. Panic, and even more panic. Panic selling.

The market, as one CNBC journalist put it, was overselling. It is one thing to sell stock in banks but another to quickly sell stocks in, say, a advertising firm. Brokers were selling left-and-right because they feared that if they didn’t someone else would and that by that time when they sold their stock would be worth less. One selling bequeathed another and Wall Street registered its worst week (this panic overselling raises questions about the virtue of leaving the market entirely to fluctuate at all time. Russia and many other nations ceased selling for some time to buck the panic selling. I do not know if I would endorse such a policy, but it clearly has its merits). But what do we have now?

Today, the stock market gained and then gained some more. The Dow 500, the United State’s and by virtue of that the world’s leading index, recorded its highest ever gain in a single day: over 900 points. Brokers this time rushed to compensate for the overselling last week. Instead of one sell leading to another, one buy led to another. Brokers quickly rushed to correct the errors of last week by restoring the proper value of the nation’s and the world’s companies. So what are the lessons learned?

Buy low and sell high. A shrewd investor, a la Warren Buffet, knows panic selling when he sees it and he knows that the market will eventually correct itself and that stocks will rise. So will everyone is selling and fretful about market fortunes, he bids his time and buys good stocks that have fallen in the belief that they will raise once more. He then waits for the market to pick up again and then watch the large-profit margins roll in.

That is the lesson to be learned, my friends. Buy your stocks low and then sell them high. Now, if only I had had money to do such a thing then last week.