The alchemist

But the sheep had taught him something even more important: that there was a
language in the world that everyone understood, a language the boy had used
throughout the time that he was trying to improve things at the shop. It was the 
language of enthusiasm, of things accomplished with love and purpose, and as  part of a search for something believed in and desired. Tangier was no longer a
strange city, and he felt that, just as he had conquered this place, he could  conquer the world."
The Alchemist- Paulo Coelho