I realize the following is not a Belmont post. However, starting with the assumption that it is not possible to delineate a single Belmont post as amazing (since far too many are beyond outstanding) I nominate Steve McCroskey (played by Lloyd Bridges) and his quotes from Airplane…..
I’ve seen nothing better than his Airplane quotes:

“I picked the wrong week to quit….”

Sniffing glue
Amphetamenes
Drinking
Smoking

-Oveur, Dunn.

Roger.

If only The WH was as on the ball as them….