If you think you can do it, you can.
If you're going through hell, keep going.
Always desire to learn something useful.
Either you run the day or the day runs you.
Expect problems and eat them for breakfast.
Never complain and never explain.
Be thine own palace, or the world's thy jail.
To know oneself, one should assert oneself.
Be gentle to all and stern with yourself.
Begin to be now what you will be hereafter.
Failure and things of this sort - you can take it one of two ways. You can either let that hurt you and really affect the way that you live your life in the future, or you can use that as an opportunity for growth.