This is my favorite Harbaugh-ism, bar none. You can have the American Sniper tweet, the Nordin sleepover, or his now legendary Pardon My Take interview; but for me, “Attack each day with enthusiasm unknown to mankind” is peak Harbaugh.
I love this tweet because it is purely bad ass. I’m fond of texting it to my friends when I know they have a big day at work or in school, and somewhere along the way, any glimpse of irony in those messages was lost.
Extrapolating the quote out a bit to include tenacity, grit, determination, and a billion other buzzwords under the “enthusiasm” umbrella, Harbaugh’s Michigan program fits this mantra to a tee.