Time

You only have 33,000 days.  Better make the most of them.
- - Dr. Xu (June 2015)

Don't say you don't have enough time. You have exactly the same number of hours per day that were given to Helen Keller, Louis Pasteur, Michelangelo, Mother Teresa, Leonardo da Vinci, Thomas Jefferson, and Albert Einstein.
- - H. Jackson Brown Jr.

You’re never gonna be the same person you are right now. And promise and potential... are very fickle, and just might not be there anymore.
 - said Professor (Robert Redford) to student in 2007 Movie 'Lions to Lambs'  http://www.imdb.com/character/ch0033733/quotes

We have failed to recognize our one great asset: time. A conscientious use of it could make us into something quite amazing.
- - Friedrich Schiller, German writer (1759-1805)

Whatever you want to do, do it now.  There are only so many tomorrows.
- - Michael Landon (1936 - 1991; died at age 55)

The time to repair the roof is when the sun is shining. 
- -JFK

It's time to start living the life you've imagined.
- - Henry James

The life that conquers is the life that moves with a steady resolution and persistence toward a predetermined goal.  Those who succeed are those who have thoroughly learned the immense importance of plan in life, and the tragic brevity of time.
- - W.J. Davidson

Waste your money and you're only out of money, but waste your time and you've lost part of your life.
- - Michael Leboeuf