THANK YOU SCHUYLER!
SandraDodd.com/unschooling has a random quotes generator! I have fewer than 50 quotes in it, but will add more. It's kinda fragile, as things go... It took me a long time to find the little errors that were keeping it from working.
In the course of getting it on that page, I messed with other formatting, so the page isn't as... stable? Familiar. Something about that page I don't like... (to be heard in a Zoombinis voice). Holly and I are going out to see a musical at the university so I'll have to mess with it later, but still I'm very excited that the quotes can be seen, and that more can be added (v-e-r-y carefully).