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Popular science writer David Blatner, in his book Spectrums: Our Mind-boggling Universe from Infinitesimal to Infinity
My Conversation with David Blatner
Click here to listen on your iphone or ipad
"To discover to the world something which deeply concerns it, and of which it was previously ignorant; to prove to it that it had been mistaken on some vital point of temporal or spiritual interest, is as important a service as a human being can render to his fellow creatures..." John Stuart Mill, "On Liberty"