“What makes it difficult for the average man to be a universalist is that the average man has to be a specialist; he has not only to learn one trade, but to learn it so well as to uphold him in a more or less ruthless society. This is generally true of males from the first hunter to the last electrical engineer; each has not merely to act, but to excel. Nimrod has not only to be a mighty hunter before the Lord, but also a mighty hunter before the other hunters. The electrical engineer has to be a very electrical engineer, or he is outstripped by engineers yet more electrical. Those very miracles of the human mind on which the modern world prides itself, and rightly in the main, would be impossible without a certain concentration which disturbs the pure balance of reason more than does religious bigotry. No creed can be so limiting as that awful adjuration that the cobbler must not go beyond his last. So the largest and wildest shots of our world are but in one direction and with a defined trajectory: the gunner cannot go beyond his shot, and his shot so often falls short; the astronomer cannot go beyond his telescope and his telescope goes such a little way. ”
—G K Chesterton, What’s Wrong with the World.