Never complain and never explain.
Be thine own palace, or the world's thy jail.
If you can dream it, you can do it.
If you're going through hell, keep going.
You never know what motivates you.
The wise does at once what the fool does at last.
If you think you can do it, you can.
Wherever you are - be all there.
It's always too early to quit.
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.