It's always too early to quit.
Be thine own palace, or the world's thy jail.
Either you run the day or the day runs you.
Be gentle to all and stern with yourself.
If you can dream it, you can do it.
You never know what motivates you.
Be kind whenever possible. It is always possible.
The most effective way to do it, is to do it.
If you're going through hell, keep going.
Things do not happen. Things are made to happen.
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.