(Roz is trying to convince Frasier to appear as a guest lecturer on an Alaskan cruise)
Roz: (pointing at the brochure) ...it says right here, Gore Vidal did two of them.
Frasier: (incredulous) Gore Vidal! He hates everything!
This alludes to the Life Cereal commercials that ran in the 70's and 80's in which little brother Mikey liked the cereal, in spite of the fact that, "He hates everything!".