This is indeed the exact quote I have saved. Apparently a good memory is even better than grep or a search engine, at least when the latter have nothing more to go on than keywords from a bad memory.

I'd love to hear more details on how you recalled it, though - do you have an Anki deck or something filled with particularly interesting quotes including that one? Or do you believe that your use of spaced repetition has improved your memory even for data that you're not specifically using spaced repetition to remember?