Serious-minded

"Oh, they never look at anything that folks like we can understand," the carter continued, by way of passing the time. "On'y foreign tongues used in the days of the Tower of Babel, when no two families spoke alike. They read that sort of thing as fast as a night-hawk will whir. 'Tis all learning there—nothing but learning, except religion. And that's learning too, for I never could understand it. Yes, 'tis a serious-minded place. Not but there's wenches in the streets o' nights…"