The fact that he didn't get credit for a while is more the story of social injustice. But his own spirit wasn't driven by that and wasn't dependent upon that. He just wished he had the cash to go to medical school.
It may be laid down as a primary position and the basis of our system that every Citizen who enjoys the protection of a Free Government owes not only a proportion of his property but even of his personal services to the defense of it.