Spock: I’ll have you checkmated your next move.

Kirk: Have I ever mentioned you play a very irritating game of chess, Mister Spock?

Spock: Irritating? Ah, yes. One of your Earth emotions.

(Kirk makes an unexpected move)

Kirk: Certain you don’t know what irritation is?

Spock: The fact one of my ancestors married a human female …

Kirk: Terrible having bad blood like that.

Star Trek – Season 1: Episode 1 – “Where No Man Has Gone Before”