The Calling of Dan Matthews
"And because of these things, to the keen old physician and student of life, the boy was a revelation of that best part of himself--that best part of the race."
It happened on the Doctor's first trip to the Ozarks.
Martha says that everything with the Doctor begins and ends with fishing. Martha has a way of saying such things as that. In this case she is more than half right for the Doctor does so begin and end most things.
Whenever there were grave cases to think out, knotty problems to solve, or important decisions to make, it was his habit to steal away to a shady nook by the side of some quiet, familiar stream. And he confidently asserts that to this practice more than to anything else he owes his professional success, and his reputation for sound, thoughtful judgment on all matters of moment.
"And why not?"