If you're going through hell, keep going.
If you can dream it, you can do it.
Quality is not an act, it is a habit.
Always desire to learn something useful.
If you think you can do it, you can.
Expect problems and eat them for breakfast.
The wise does at once what the fool does at last.
The secret of getting ahead is getting started.
To be a good loser is to learn how to win.
You never know what motivates you.
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.