Nick Cantrell
One thing I've always struggled with in writing is creating meaningful quotes or pieces of art in-universe. Poems, philosophers, etc. How do you go about doing this?
Brandon Sanderson
The best way is, for me, to steep myself a lot in somebody's style after the book is done. So I finish the book... I do this sometimes with other things, too. For instance, Taravangian's viewpoint where he's very smart in Oathbringer. I wanted this to feel very different. Another one I did it for in Oathbringer was the ardent who's reading the romance novel. And once I finish the book, I go read a ton of someone else's style, and I kind of try to do a Weird Al version. You know how Weird Al will do style parodies, where he's doing a song in the style of someone else? Or you might learn how to paint using some great master's style, and then try a different great master's style? I try to evoke that style in what I'm writing. For instance, with Taravangian, I used Faukner. Went and read a bunch of Faulkner. Very steeped myself in Faulkner, tried to get some of the big, meaty Faulkner-esque paragraphs and complex sentences and things like that. Just so that when you read Taravangian, even if you're not like "Oh, he's doing Faulkner," you'd be like "Something's odd. It's almost like Brandon had someone else write this chapter." That works really well for poetry, also, for songs in-world and things like that.
If that doesn't work, something else you can do is do what I did. My father-in-law is a musician who is a singer/songwriter. (Matt Bushman on Spotify.) He has since retired from that, but he's a very good songwriter. And I had him write a couple of my songs for Words of Radiance. I had him wright all the epigraphs of the song. I just hired him. And I had him write Shallan's lullaby for that book. And that worked out really well. 'Cause again, I wanted something that felt like I hadn't written it. So I had someone else write it.
So those are two different ways you can kind of shake up your style. (One by not actually doing anything in your style, but you know what I mean.)