From Economic Controversies — surrounding passage

Perhaps a world exists somewhere where intelligent beings are fully formed in some sort of externally determined cages, with no need for internal learning or choices by the individual beings themselves. But man is necessarily in a different situation. Individual human beings are not born or fashioned with fully formed knowledge, values, goals, or personalities; they must each form their own values and goals, develop their personalities, and learn about themselves and the world around them.

“Every man must have freedom, must have the scope to form, test, and act upon his own choices, for any sort of development of his own personality to take place. He must, in short, be free in order that he may be fully human.”

In a sense, even the most frozen and totalitarian civilizations and societies have allowed at least a modicum of scope for individual choice and development. Even the most monolithic of despotisms have had to allow at least a bit of “space” for freedom of choice, if only within the interstices of societal rules. The freer the society, of course, the less has been the interference with individual actions, and the greater the scope for the development of each individual.