A man doesn’t know what he knows until he knows what he does … 9 Mar 2019 | 0 comments A man doesn’t know what he knows until he knows what he doesn’t know. — Laurence J. Peter Laurence J. Peter: Canadian Writer Born: September 16, 1919 Died: January 12, 1990 #Knows #Until #LaurenceJ. #Peter #Canadian #Writer Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.