Since I am not going to tattoo this on my forehead, or anywhere else on my person, I thought I'd slap it here. Not sure I'll ever abide by "3" or even "5." But still.
1. You must write.
2. You must finish what you write.
3. You must refrain from rewriting, except to editorial order.
4. You must put the work on the market.
5. You must keep the work on the market until it is sold.
~ Robert A. Heinlein, On Writing Speculative Fiction, 1947