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."
Kahlil Gibran, The Wanderer, Chapter 27