“...this rapid extension of specialized opinion to every aspect of knowledge and daily living acts to inhibit the spontaneity of a man's thought and expression. Where a century or two ago the ordinary civilized man would speculate boldly on any subject and converse joyfully on all manner of topics, his spirit today is muted in dismal deference to the cumulative discoveries of science and the qualified pronouncements of the experts. His personality shrivels. He has no convictions to sustain him. His discourse perforce becomes restricted to jest, trivial observations, and personal reminiscence.”