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"Man is not alone in this vast universe. There are other sentient beings on remote planets in a lower or higher stage of development than ourselves.

The advance of science has stripped mankind and his platform of all privileged positions as world factors. The earth is not even in the center of its own galaxy. It is the third planet of the sun family which is located in the outer rim of a galaxy containing a hundred thousand million other stars. And this local galaxy of ours is only one of many million billions more.

Nor can earth-dwellers claim special location in cosmic time any more than in space. This earth, presumably born about five billion years ago, is rather young as planets go. Thus life can have originated sooner and evolved for longer periods elsewhere in the universe."

Such were the thoughts of Harlow Shapley in 1958. 50 years later, I have to concur.