Seize every second of your life and savor it.

You'll seldom experience regret for anything that you've done.
It is what you haven't done that will torment you.
The message, therefore, is clear.  Do it!
Develop an appreciation for the present moment.
Seize every second of your life and savor it.
Value your present moments.
Using them up in any self-defeating ways means you've lost them forever.

Wayne Dyer