To be a good loser is to learn how to win.
Never complain and never explain.
If you're going through hell, keep going.
Do not weep do not wax indignant. Understand.
Be gentle to all and stern with yourself.
The most effective way to do it, is to do it.
I can, therefore I am.
Be thine own palace, or the world's thy jail.
The secret of getting ahead is getting started.
Problems are not stop signs, they are guidelines.
There's obviously nothing wrong with selling your art - only an idiot with a trust fund would tell you otherwise. But it's confusing to know how far you should take it.