What are the motifs in Endgame by Samuel Beckett?

"Nothing is funnier than unhappiness." Though Endgame is dark, there is humor in the play. Clov's confusion over which items to fetch first and his antics with the ladder could be directly out of a film starring Charlie Chaplin, whom Beckett admired. Commenting on Endgame himself, Beckett identified the phrase "nothing is funnier than unhappiness" as key to the play's interpretation and performance.