
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"
