Either you run the day or the day runs you.
Things do not happen. Things are made to happen.
Always desire to learn something useful.
What you do today can improve all your tomorrows.
If you're going through hell, keep going.
Go for it now. The future is promised to no one.
Be thine own palace, or the world's thy jail.
It's always too early to quit.
Know or listen to those who know.
Be kind whenever possible. It is always possible.
Most of man's problems upon this planet, in the long history of the race, have been met and solved either partially or as a whole by experiment based on common sense and carried out with courage.