McCoy : "There's something wrong about a man who never smiles, whose conversation never varies from the routine of the job, and who won't talk about his background."
Spock : "I see
McCoy : "Spock, I mean that it's odd for a non-Vulcan. The ears make all the difference."
Spock : "I find your argument strewn with gaping defects in logic."
McCoy : "Maybe, but you can't evaluate a man by logic alone. Besides, he has avoided two appointments that I've made for his physical exam without reason."
Spock : "That's not at all surprising, Doctor. He's probably terrified of your beads and rattles."