Price and the wonderful company...

From Deep Value:

We know that a wonderful company will earn an average return if the market price reflects its fair value. To outperform, the price must be discounted—the wider the discount, or margin of safety, the better the return—or the business must be more wonderful than the market believes. Wonderful company investors must therefore determine both whether a superior business can sustain its unusual profitability, and the extent to which the stock price already anticipates its ability to do so. This is a difficult undertaking because, as we’ll see, it is the rare company that does so.