The investor cannot pinpoint just how much per share a particular company will earn two years from now. As a matter of fact, the company`s top management cannot. Under these circumstances, how can anyone say with even moderate precision just what is overpriced for an outstanding company with an unusually rapid growth rate? If the growth rate is so good that in another ten years the company might well have quadrupled, is it really of such great concern whether at the moment the stock might or might not be 35% overpriced? That which really matters is not to disturb a position that is going to be worth a great deal more later." - Philip Fisher
I constantly see people rise in life who are not the smartest -- sometimes not even the most diligent. But they are learning machines; they go to bed every night a little wiser than when they got up. And, boy, does that habit help, particularly when you have a long run ahead of you." - Charlie Munger