Adam Smith pointed out that there were three things that make us more prosperous, in a general sort of way: freedom to pursue our own self-interest; specialization, which he called division of labor; and freedom of trade.
The downside to becoming a doctor, I think, is it's a very long process; four years of medical school, three years of internship, two years of residency, umpteen years of specialization, and then finally you get to be what you have trained almost all your life for.
The general fact is that the most effective way of utilizing human energy is through an organized rivalry, which by specialization and social control is, at the same time, organized co-operation.
All research in the cultural sciences in an age of specialization, once it is oriented towards a given subject matter through particular settings of problems and has established its methodological principles, will consider the analysis of the data as an end in itself.
Too rigid specialization is almost as bad for a historian's mind, and for his ultimate reputation, as too early an indulgence in broad generalization and synthesis.
It would be suicide in the American academy to show too early an interest beyond your doctoral specialization: charges of everything from charlatanry to ambition would be levied and tenure denied. I've seen this first-hand.
Much literary criticism comes from people for whom extreme specialization is a cover for either grave cerebral inadequacy or terminal laziness, the latter being a much cherished aspect of academic freedom.
In an age of specialization people are proud to be able to do one thing well, but if that is all they know about, they are missing out on much else life has to offer.
Only by strict specialization can the scientific worker become fully conscious, for once and perhaps never again in his lifetime, that he has achieved something that will endure. A really definitive and good accomplishment is today always a specialized act.
This is an age of specialization, and in such an age the repertory theater is an anachronism, a ludicrous anachronism.