Whenever you invest in any company, you’re looking for its market cap to rise. This can’t happen unless buyers are paying higher prices for the share… - Peter Lynch

In stage four, once again they’re crowded around me — but this time it’s to tell me what stocks I should buy. Even the dentist has three or four tips, and in the next few days I look up his recommendations in the newspaper and they’ve all gone up. When the neighbors tell me what to buy and then I wish I had taken their advice, it’s a sure sign that the market has reached a top and is due for a tumble.

As far back as 1602, Dutch people were buying shares in the United Dutch East India Company. This was the world’s first popular stock, sold on the world’s first popular stock exchange, which operated from a bridge over the Amstel River in Amsterdam. Crowds of eager investors gathered there, trying to get the attention of a stockbroker, and when their pushing and shoving got out of hand, police were called in to restore the peace.

If my favorite Internet company sells for $30 a share, and yours sells for $10, then people who focus on price would say that mine is the superior company. This is a dangerous delusion. What Mr. Market pays for a stock today or next week doesn’t tell you which company has the best chance to succeed two to three years down the information superhighway.