American author isaac asimov penned or edited over 500 books in his lifetime making him one of the most prolific writers of all time he specialised in awesome sci fi as well as popular science this quote is mega and is perfect for deriding know it alls everywhere design copyrighted by push merchandisingkids t shirt design reads people who think they know everything are a great annoyance to those of us that do isaac asimovwe lovingly print all of our kids t shirts onto 100 cotton soft