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More important than the material issue . . . the opening of a new, high frontier will challenge the best that is in us . . . the new lands waiting to be built in space will give us new freedom to search for better governments, social systems, and ways of life.

More important than the material issue . . . the opening of a new, high frontier will challenge the best that is in us . . . the new lands waiting to be built in space will give us new freedom to search for better