Here are some of my favorite quotes:
"..I wished to live deliberately, to front only the essential facts of
life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived."
- Henry David Thoreau
"Our most basic common link is that we all inhabit this small planet.
We all breathe the same air. We all cherish our children's future. And we are all mortal." - John
F. Kennedy
"Do -- or do not. There is no try." - Yoda
"Act the way you would like to be and soon you will be the way you act."
- William James