I was looking through TED talks and ran across this.  I loved the quote in the middle (hopefully I copied it correctly):

Look in the mirror everyday and ask myself:
“If today was the last day of my life would I want to dowhat I am about to do?”
If the answer is no for too many days in a row, I know I need to change something.
– Steve Jobs

Another on at the end caught my attention:

Stay hungry, Stay foolish – Steve Jobs

Good stuff.