#EnigMarch, Day 29: "Quote". This one's a little unusual in that it's not entirely self-contained. You might have to make use of your favourite search engine.

Example: https://tinyurl.com/2eyxyq7h
Puzzle: https://tinyurl.com/2mhreh4t

Penpa+

Web application to create and solve Sudokus and Puzzles.

@Menderbug whooo I solved it! Nice one!