It's always too early to quit.
If you can dream it, you can do it.
Well done is better than well said.
To be a good loser is to learn how to win.
If you're going through hell, keep going.
Go for it now. The future is promised to no one.
Begin to be now what you will be hereafter.
Be kind whenever possible. It is always possible.
Never complain and never explain.
Be gentle to all and stern with yourself.
In high school, we studied a lot of poetical forms. I was really interested in the math that was involved and the strange live break ups. That gave me a great amount of respect for a rhymed stanza.