'But four hundred Vulcans?..'
'I've noticed that about your people, Doctor. You find it easier to understand the death of one than the death of a million. You speak about objective hardness of the Vulcan heart, yet how little room there seems to be in yours.'
'Suffer the death of thy neighbor, eh, Spock? You wouldn't wish that on us, would you?'
'It might have rendered your history a bit less bloody.'
(Immunity Syndrome)