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The radical of one century is the conservative of the next. The radical invents the views. When he has worn them out, the conservative adopt.

Mark Twain (2014). “Mark Twain on Common Sense: Timeless Advice and Words of Wisdom from America's Most-Revered Humorist”, p.16, Skyhorse Publishing, Inc.
The radical of one century is the conservative of the next. The radical invents the views. When he has worn them out, the conservative adopt.