I guess my question would be, what does it matter where the quote originated? It the quote was from me today in my bedroom would it have any less value than if it were from a scottish lord from his bedroom desk? What matters is if you feel the quote holds weight in todays society. Authenticy of the information does not matter in this case. Think for yourselves and ask if you feel this quote is an accurate representation of what happens. then maybe for the future we can just write it as an uncredited quote.