Robert Sheckley, Immortality, Inc. (in the Dimensions of Sheckley omnibus) pages 127-129

"There are two basic elements in human affairs," Joe said sententiously. "One of them is man's eternal struggle for freedom. Freedom of worship, freedom of press and assembly, freedom to select government--freedom! And the other basic element in human affairs is the efforts of government to withhold freedom from the people."

Blaine considered this a somewhat simplified view of human affairs. But he continued listening.

"Government," Joe said, "withholds freedom for many reasons. For security, for personal profit, for power, or because they feel the people are unready for it. But whatever the reason, the basic facts remain: Man strives for freedom, and government strives to withhold freedom. Transplant is simply one more in a long series of the freedoms that man has aspired to and that his government feels are not good for him...."

"What will Transplant do?" Blaine asked.

"Transplant," Joe said fervently, "gives man the ability to transcend the limits imposed by his heredity and his environment!"

"Huh?"

"Yes! Transplant lets you exchange knowledge, bodies, talents and skills with anyone who wishes to exchange with you. And plenty do.... Think about it, Mr. Blaine. Why should a man be forced to live out his lifetime in a body he had no part in selecting? It's like telling him he must live with the diseases he's inherited, and mustn't try to cure them. Man must have the freedom to choose the body and talents best suited to his personality needs."

"If your plan went through," Blaine said, "you'd simply have a bunch of neurotics changing bodies every day."

"The same general argument was raised against the passage of every freedom," Joe said, his eyes glittering. "Throughout history it was argued that man didn't have the sense to choose his own religion, or that women didn't have the intelligence to use the vote, or that people couldn't be allowed to elect their own representatives because of the stupid choices they'd make. And of course there are plenty of neurotics around, people who'd louse up heaven itself. But you have a much greater number of people who'd use their freedoms well."

Joe lowered his voice to a persuasive whisper. "You must realize, Mr. Blaine, that a man is not his body, for he receives his body accidentally. He is not his skills, for those are frequently born of necessity. He is not his talents, which are produced by heredity and by early environmental factors. He is not the sicknesses to which he may be predisposed, and he is not the environment that shapes him. A man contains all these things, but he is greater than their total. He has the power to change his environment, cure his diseases, advance his skills--and, at last, to choose his body and talents! That is the next freedom, Mr. Blaine! It's historically inevitable, whether you or I or the government like it or not. For man must have every possible freedom!"

Joe finished his fierce and somewhat incoherent oration red-faced and out of breath. Blaine stared at the little man with new respect. He was looking, he realized, at a genuine revolutionary of the year 2110.