If you think you can do it, you can.
What you do today can improve all your tomorrows.
Things do not happen. Things are made to happen.
Go for it now. The future is promised to no one.
Without hard work, nothing grows but weeds.
Know or listen to those who know.
If you're going through hell, keep going.
To be a good loser is to learn how to win.
Quality is not an act, it is a habit.
Leap, and the net will appear.
And just when we were at the end of our design process there was the news that the Italian government and the U.S. government had signed an agreement to fly the first Italian astronaut on that flight.