Its all that the young can do for the old, to shock them and keep them up to date. – George Bernard Shaw

It is fortunate that each generation does not comprehend its own ignorance. We are thus enabled to call our ancestors barbarous. – Charles Dudley Warner

From the earliest times the old have rubbed it into the young that they are wiser than they, and before the young had discovered what nonsense this was they were old too, and it profited them to carry on the imposture. – W. Somerset Maugham