"We are all selfish," said the doctor. "The difference is, that some are selfish for themselves, and some for other people."
"Now you are cynical."
"I am nothing of the kind. What do you want with me?"
"Preston is doing very well, is he not, Dr. Sandford."
"Perfectly well. He will be out just as soon as in the nature of things it is possible. I suppose, or am I not to suppose, that then you will consider your work done?"
"I do not think he wants me a quarter as much as other people, now."
"He does not want you at all, in the sense of needing. In the other sense, I presume different people might put in a claim to be attended to."
"But, Dr. Sandford, I wish I knew who of all these people in the ward need me most."
"You are doing all you can for all of them."
"If I had that knowledge, though, I might serve them better - or with more judicious service."