Quotes by Know It All You live with life's disappointments and learn from them. At seventy-eight, I know it all. Rodney Dangerfield know-it-all eight disappointment If you think you know it all, you are missing something. Thomas Dewar, 1st Baron Dewar know-it-all missing thinking Nothing's worse than a woman know-it-all. Tom DeLay know-it-all knows The smartest thing is knowing that I don't know it all and that there's more to learn. Tony DiCicco know-it-all knowing knows What is really important is what you learn after thinking you know it all. Waite Phillips know-it-all important thinking Always be suspicious of those who pretend to know it all, claim their way is the best way and are willing to force their way on the rest of us. Walter E. Williams know-it-all claims way «12