Actually, I think Dakota was insufficiently impressed by the "or circumstances" part of the quote:

"the fallacy of attacking the character or circumstances of an individual who is advancing a statement"

With no disrespect to Blackstone's dogged correctness or Dakota's indefatigable pragmatism, I now quote the worst joke I have ever heard.

Q: Why do Kellogg's senior management have difficulty with their expense claims for breakfast when travelling?

A: Cornflake of interest.