"Andrew On Prostitutes" 
by Gibran Khalil Gibran 

THE PHILOSOPHER AND THE COBBLER

There came to a cobbler's shop a philosopher with worn shoes. And the philosopher
said to the cobbler, "Please mend my shoes." And the cobbler said, "I am mending
another man's shoes now, and there are still other shoes to patch before I can come to
yours. But leave your shoes here, and wear this other pair today, and come tomorrow
for your own." 

Then the philosopher was indignant, and he said, "I wear no shoes that are not mine
own." And the cobbler said, "Well then, are you in truth a philosopher, and cannot
enfold your feet with the shoes of another man? Upon this very street there is another
cobbler who understands philosophers better than I do. Go you to him for mending."