peaceably you had to be dragged in."

"Yeah. A dumping ground for people who were too stupid not to control their own breeding."

"Your Ansan peasants, my friend, have about twice the Terran birth rate. It's merely that there are more Terrans to start with—and Sirians and Centaurians and all the old settled planets. No, it was more than that. It was a question of military necessity."

"Uh-huh. Sure."

"Read your history sometime. When the Commonwealth broke up in civil wars two hundred years ago it was hell between the stars. Half savage peoples who never should have left their planets had learned how to build spaceships and were going out to raid and conquer. A dozen would-be overlords scorched whole worlds with their battles. You can't have anarchy on an interstellar scale. Too many people suffer. Old Manuel I had the guts to proclaim himself Emperor of Sol—no pretty euphemisms for him, an empire was needed and an empire was what he built. He kicked the barbarians out of the Solar System and went on to conquer their home territories and civilize them. That meant he had to subjugate stars closer to home, to protect his lines of communication. This led to further trouble elsewhere. Oh, yes, a lot of it was greed, but the planets which were conquered for their wealth would have been sucked in anyway by sheer economics. The second Argolid carried on, and now his son, Manuel II, is finishing the job. We've very nearly attained what we must have—an empire large enough to be socio-economically self-sufficient and defend itself against all comers, of which there are many, without being too large for control. You should visit the inner Empire sometime, Donovan, and see how many social evils it's been possible to wipe out because of security and central power. But we need this sector to protect our Sagittarian flank, so we're taking it. Fifty years from now you'll be glad we did."

Donovan looked sourly up at him. "Why are you feeding me that?" he asked. "I've heard it before."

"We're going to survey a dangerous region, and you're our guide. The captain and I think there's more than a new radiation in the Black Nebula. I'd like to think we could trust you."

"Think so if you wish."

"We could use a hypnoprobe on you, you know. We'd squeeze your skull dry of everything it contained. But we'd rather spare you that indignity."

"And you might need me when you get there, and I'd still be 

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