Human society - man in a group - rises out of its lethargy to new levels of productivity only under the stimulus of deeply inspiring and commonly appreciated goals. A lethargic world serves no cause well; a spirited world working diligently toward earnestly desired goals provides the means and the strength toward which many ends can be satisfied...to unparalleled social accomplishment. -- Dr. Lloyd V. Berkner, in "The History of Manned Space Flight"