I wonder whether any other generation has seen such astounding revolutions of data and values as those through which we have lived. Scarcely anything material or established which I was brought up to believe was permanent and vital, has lasted. Everything I was sure or taught to be sure was impossible, has happened.

Winston Churchill (1874-1965) British statesman and author

My Early Life: A Roving Commission, ch. 5 “The Fourth Hussars” (1930)