author: Augustus De Morgan content: "Most writers on logic strongly object to all symbols, except the venerable\ \ Barbara, Celarent, etc., \u2026I should advise the reader not to make up his mind\ \ on this point until he has well weighed two facts which nobody disputes, both\ \ separately and in connexion. First, logic is the only science which has made no\ \ progress since the revival of letters; secondly, logic is the only science which\ \ has produced no growth of symbols." id: e710df05-38bb-43bf-99ef-190da03b4d92