Nature says thou shalt keep
the air, skate, swim, walk, ride, run.
When you have worn out your shoes,
the strength of the sole leather
has passed into the fibre of your body.
I measure your health by the number of shoes
and hats and clothes you have worn out.
He is the richest man who pays
the largest debt to his shoemaker.
~Ralph Waldo Emerson, 1851