My Random Quote Machine - Doesn't Re-roll the Same Quote!

Hello, I’m looking for some feedback on my random quote machine! I thought this one was fairly well constructed and functional, but of course part of feedback is hearing about improvements to make! The machine was inspired by LastWeekTonight’s, and chooses a random quote to go with random author, but checks to see if it’s the same quote or author as the previous roll.

Thanks for any feedback!