One of the earliest -- and most important -- lessons that successful investors learn is the value of looking beyond the headlines. While popular stocks may grab average investors' attention, often these tickers can be siren songs, luring many into unwise investments and distracting them from proven winners.But those willing to follow this advice may be at a loss for how to find the compelling stocks that others are missing. Fortunately, they need not look far, for Deere (DE -0.95%), Heico (HEI 0.23%), and L ...