You Cannot Be Serious (ISBN 0-425-19008-0 in the USA, Serious ISBN 0-7515-3454-4 in the UK) is a book written by the world's former #1 tennis player John McEnroe (with James Kaplan).
McEnroe details life behind the scenes on the tennis tour as well as giving the reader a very candid look at his personal life and struggles. The book made it to the top of the New York Times bestseller list. The hardcover edition was published by G.P. Putnam's Sons in 2002, with the paperback being released a year later by The Berkley Publishing Group in the USA, and by Time Warner in the UK. The name of the book comes from McEnroe's famous catchphrase "You Cannot Be Serious!"
Famous quotes containing the words you cannot and/or you:
“If you chance to live and move and have your being in that thin stratum in which the events that make the news transpire,—thinner than the paper on which it is printed,—then these things will fill the world for you; but if you soar above or dive below that plane, you cannot remember nor be reminded of them.”
—Henry David Thoreau (1817–1862)
“As a father I had some trouble finding the words to separate the person from the deed. Usually, when one of my sons broke the rules or a window, I was too angry to speak calmly and objectively. My own solution was to express my feelings, but in an exaggerated, humorous way: “You do that again and you will be grounded so long they will call you Rip Van Winkle II,” or “If I hear that word again, I’m going to braid your tongue.””
—David Elkind (20th century)