What's up with the lack of quotable lines?

I was searching for some anime related quotes to put in my study notes (my aim is to be an engineer) mainly just to make it a bit more enjoyable and entertaining for me to study, but I noticed nearly every quote I found was from Attack on Titan, and a lot of quotes that are supposedly from other anime are actually from Attack on Titan like a quote that was supposedly from My Hero Academia was from Attack on Titan.<br><br>Anyways, is there an actual lack of quotable lines like Attack on Titan's or is it just that Attack on Titan's quotes are actually really good and get quoted a lot because of its popularity and people just love the show and the quotes so much?<br><br>Or are there not that many lines in other anime that are good enough to be quoted, idk.