Over at Writer Unboxed author Barbara O'Neal (aka Barbara Samuel) has an excellent piece here about writing truths and how we arrive at them. There's also a line to site with photos of authors' hands with such advice actually written on them.
If I could tattoo one writing truth on my hand, it would be the last line of my old Courage post, and would look like this:
What truth would you write on your hand? Let us know in comments.