Bones: Permission to speak freely, sir.
Spock: I welcome it.
Bones: Do you? Okay, then. Are you out of your Vulcan mind? Are you making a logical choice, sending Kirk away? Probably. But the right one? You know, back home we got a saying, "If you're gonna ride in the Kentucky Derby, you don't leave your prize stallion in the stable."
Spock: A curious metaphor, Doctor, as a stallion must first be broken before it can reach its potential.
Bones: My God, man, you could at least act like it was a hard decision.
Spock: I intend to assist in the effort to reestablish communications with Starfleet. However, if crew morale is better served by my roaming the halls weeping, I will gladly defer to your medical expertise. Excuse me. (Spock walks away)
Bones: Green-blooded hobgoblin.