“Suffering is humbling. It pays to know how to get your butt kicked.”
Source: Born to Run: A Hidden Tribe, Superathletes, and the Greatest Race the World Has Never Seen
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Christopher McDougall 17
American journalist and writer 1962Related quotes

“Just because we wear make-up don't mean we can't kick your butt.”

Original: Scegli sempre persone che sappiano prestare attenzione ai dettagli, che sappiano essere grate per le tue attenzioni, ma soprattutto scegli persone che sappiano valorizzare il tuo tempo e la tua persona.
Source: prevale.net

“Keep your head clear and know how to suffer like a man. Or a fish, he thought.”
The Old Man and the Sea (1952)

“Your motivation is your pay packet on Friday. Now get on with it.”
Fred Metcalf, The Penguin Dictionary of Modern Humorous Quotations (1987).

As quoted in "Rekognize" http://www.hark.com/clips/lkkxsfbcbd-listen-up-me-name-be-buchanan-me-knows-nuff-tings-bout-politics (25 July 2004), Da Ali G Show.
2000s

Quoted in Parade Magazine 10 July 2008 http://www.parade.com/celebrity/celebrity-parade/archive/pc_0194.html.