"If I could be assured that such a sacrifice would ensure the safety, and perhaps the escape of everyone here, I would gladly make that sacrifice." Daneel is solemn as he says it. "Mere comfort, perhaps, is not worth a trade for what I can do if I'm functioning."

But he can't, and he won't, and he only worries a little about the possibility of someone taking it upon themselves to salvage parts from him in the case of his meeting with an accident; under normal circumstances, that would be wise, but not here.

"I do not... wish... to cease functioning, but neither could I selfishly withhold what might be mine to give. It is irrelevant, in any case."