On Man Learning by Claude Bernard “Man can learn nothing except by going from the known to the unknown.” — Claude Bernard Share this:TwitterFacebookLinkedInPinterestPrintMoreTelegramEmailWhatsAppRedditPocketLike Loading... Related Author: Wendy K. Engela I am always ready to answer questions about my marketing business or writing... All you need to know about me is on my websites. View all posts by Wendy K. Engela