Everything is harder, or rather, I should say everything is more complex. The result is that I learn how to tolerate stress, both mental and physical, and how to adapt to make something work despite the fact that the environment is not cooperating. I deal with it or fail. When I’m out there, it doesn’t matter that I can deadlift 3x my bodyweight on a bar, because that doesn’t change the fact that a rock is completely off-balance and seems to be actively trying to roll onto my toes. And that doesn’t change the fact that I’m picking it up and carrying it up the mountain anyway.

That is the definition of tough.

~ Brett McKay from, http://www.artofmanliness.com/2013/10/03/you-may-be-strong-but-are-you-tough/

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