One of my favorite writing quotes comes from E.L. Doctorow: "Writing is like driving at night in the fog. You can only see as far as your headlights, but you can make the whole trip that way." It sounds to me as if he was a pantser, writing from scene to scene. Of course, you still need to have a set of landmarks that you're looking for, whether you're going somewhere or writing a story that requires a plot structure. Still, to write this way requires a certain confidence that you'll end up where you want to.
Here are some other writing quotes that resonate with me. You can find all of these, and many more, listed on Goodreads.
"There is no greater agony than bearing an untold story inside you."--Maya Angelou
"If there's a book that you want to read, but it hasn't been written yet, then you must write it."--Toni Morrison
"Fantasy is hardly an escape from reality. It's a way of understanding it."--Lloyd Alexander
"No tears in the writer, no tears in the reader. No surprise in the writer, no surprise in the reader."--Robert Frost
"You must stay drunk on writing so reality cannot destroy you." -- Ray Bradbury
I was tempted to list more, but I'll stop here. Which of these quotes appeal to you? Are there others you like? Feel free to share them in the comments.