Riddle twenty

Riddle Twenty: Recollection

Difficulty: 2
Interest: 5

Before you got to this level, there was some text congratulating you and redirecting you here. Go back there, and read the quote.

The quote you read from the last page is effectively quite familiar. Simply answer the question to get the answer

Next Level

*Spoilers*

Google is your friend here. You should find the answer in a matter of seconds.