Never was a grosser wrong done the fame of a true poet.
"I've been told I have the soul of a true poet."
But with the true poet every thing is terse, touching, or brilliant.
And, by the way, the "written in water" locution is borrowed from someone who was, indeed, a true poet.
He reads life and nature like a true poet.
Your true poet needs no flesh-and-blood model, if anything, it distracts.
To be a true poet is to become God.
More than a diarist or a social commentator, at his best he is a true poet.
He came out and, to everyone's surprise, a "true poet" was indeed born out of the icy water on that day.
This is the sign of a true poet.