Merlin, Dr. Jackson and others in “Unfinished Business”

Welcome, ye knights of the round table, men of honor, followers of the path of righteousness. Only those with wealth of knowledge and truth of spirit shall be given access to the underworld, the storehouse of riches of Ambrosius Aurelianus. Prove ye worthy, and all shall be revealed.

That's incredible. Certain scholars have speculated that Ambrosius and Arthur were one and the same, but that would have made him 74 years old at the Battle of Mount Badon. It's actually quite fascinating. See, Ambrosius was the son of the Emperor Constantine—

[dismissive] Yes, yes, yes. "Fascinating" is the one thing it's not. How do we "prove ye worthy" and get "all to be revealed"?

I have no idea, but something tells me truth of spirit may be a bit of a problem for you.

[defensively] You know nothing about me!

Because everything that comes out of your mouth is a lie.

Don't make me separate you two.