Originally Posted by
zooloo
I believe the original to be...
He who can, does. He who cannot, teaches.
Man and Superman (1903) "Maxims for Revolutionists"
George Bernard Shaw.
Neat! Another "Let's Put the E in JREF" award.
Americans generally attribute it to Mencken, but I've never seen it given a date, and I'll have to say that Man and Superman is before Mencken was making quotable statements (he would've only been in his 20s 1903).