Wake up! If you knew for certain you had a terminal illness--if you had little time left to live--you would waste precious little of it! Well, I'm telling you...you do have a terminal illness: It's called birth. You don't have more than a few years left. No one does! So be happy now, without reason--or you will never be at all
-- Dan Millman

The trick is in what one emphasizes. We either make ourselves miserable, or we make ourselves happy. The amount of work is the same.
— Carlos Castaneda

To be successful and happy, one must take action as if you have little time left to live while setting your goals as if you will live forever. Too often there is a tendency to operate backwards when it comes to this, setting goals as if there is no time, while taking action (or lack of it) as if there was infinite time left. Be sure that you are living as if you could die tomorrow, and planning as if you will live forever. Both are true.