Have I ever mentioned you play a very irritating game of chess, Mr. Spock?
Irritating? [smiling] Ah, yes. One of your Earth emotions.
[Kirk considers Spock for a moment, then calmly moves one of his own chess pieces. Spock's smile fades and he frowns as he realizes the effect of Kirk's move]
Certain you don't know what irritation is?
The fact one of my ancestors married a human female...
Terrible having bad blood like that.
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