"You'll expand yourself into prison if you don't look out."
Darwen laughed. "Have you read 'The Prince'?" he asked.
"No."
"You're an ignorant chap, Carstairs. I'll lend it to you."
"Thanks. What's it about, engines?"
"No—men."
"Then I won't borrow it, thanks all the same."
"It's part of my theory that every man should be a sort of little Prince, as far as his intellect, etc., will allow him."
"Hear, hear! Go on."
"Well, the essential part of a prince's job is handling men."