
“I was twice as old as my students and wondered about my relevance. I told them of Marshall Foch, the 1918 savior of France, who subsequently instructed young officers in the war college,
‘This is what I did and it worked; you must
 always do the same,’ whereupon the 1940 army was wiped out in six days.” 
– William Gibson, 
playwright,
 Shakespeare’s Game