Be gentle to all and stern with yourself.
You never know what motivates you.
Never complain and never explain.
Be thine own palace, or the world's thy jail.
Begin to be now what you will be hereafter.
After a storm comes a calm.
It's always too early to quit.
If you think you can do it, you can.
Always desire to learn something useful.
Expect problems and eat them for breakfast.