At the beginning of the episode the President says to Leo "George Bernard Shaw said 'you don't live longer, it just seems longer.'" They then debate if it was really Shaw who said it. The correct quote is by Sir Clement Raphael Freud who said "if you resolve to give up smoking, drinking and loving, you don't actually live longer; it just seems longer."
Sam and Ainsley have a running joke about her embarrassment over her first encounter with President Bartlet in the preceding episode. When she refers to "the humiliation that I've brought upon myself and my father," he observes she's got her "own little Euripides play" going. At another point, he refers to "your family and the House of Atreus." One of the great tragedians of ancient Greek drama, Euripides (c. 480 - 406 BC) wrote a number of plays based on the mythology of the House of Atreus, whose sons were Agamemnon and Menelaus. Collectively known as the Atreides, the stories associated with these two kings and their descendants and lovers (for example, Iphigenia, Cassandra, Electra, Orestes, and Helen of Troy) inspired many subsequent writers, plays, and of course, films. The Dune (1984) series of novels by Frank Herbert purport to tell the story of the House Atreides, set in the far future, but whose characters claim to be descendants of the ancient Greek House of Atreus.