Frasier: Lilian, the next time your perfectionist tendencies drive you to distraction, just remember this quotation from Henry James: "Excellence does not require perfection."
Lillian: "That's very helpful. Thank you."
Frasier: Or is it "demand"? Hmm. "Require"? "Demand"? "Excellence does not require perfection." "Excellence does not demand perfection."
Roz: Aren't they the same thing?
Frasier: Of course not, Roz. Shush! "Excellence", "demand", "require", "demand", "require"- Oh! Or is it "mandate"?
Lillian: "I really have to go now." [call disconnects]
Frasier: Oh, well, it doesn't really matter, anyway, does it? Meantime, Seattle, this is Doctor Frasier Crane, wishing you good day- Oh! It's "require". It is "require"! And good mental health.