Linderman: You see, 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.
Nathan Petrelli: I'd like to think I have both.
Linderman: Can't be done. The two have very different paths. You see, to be truly happy, a man must live absolutely in the present. No thoughts of what's gone before, and no thought of what's ahead. But, a life of meaning... A man is condemned to wallow in the past and obsess about the future.