"A joyous person abounds with energy and feels buoyant, because he or she is running a higher frequency current of energy through his or her system."

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Before the current decade ends, fee-paying passengers will be experiencing suborbital flights aboard privately funded vehicles. . . . It won't be too long before bright young men and women set their eyes on careers in Earth orbit and say: "I want to work 200 kilometers from home-straight up!"

— Arthur C. Clarke