Meaning Vs Happiness

In yesterday's episode of Heroes, the mobster Mr Linderman makes his first appearance. He turns out to be something of a philosopher. He says, "I think there comes a time when a man has to ask himself whether he wants a life of happiness or a life of meaning... two very different paths. You see, to be truly happy a man must live absolutely in the present, with no thought of what's gone before and no thought of what lies ahead. But for a life of meaning, a man is condemned to wallow in the past and obsess about the future."