You never know what motivates you.
Be thine own palace, or the world's thy jail.
Begin to be now what you will be hereafter.
Either you run the day or the day runs you.
The secret of getting ahead is getting started.
Things do not happen. Things are made to happen.
It's always too early to quit.
Be gentle to all and stern with yourself.
What you do today can improve all your tomorrows.
If you've got a talent, protect it.
But I don't think we'll go there until we go back to the moon and develop a technology base for living and working and transporting ourselves through space.