A Connecticut Yankee in King Arthur's Court, Part 3.
I spent money rather too freely in those days, it is true; but one reason for it was that I hadn't got the proportions of things entirely adjusted, even yet, after so long a sojourn in Britain--hadn't got along to where I was able to absolutely realize that a penny in Arthur's land and a couple of dollars in Connecticut were about one and the same thing: just twins, as you may say, in purchasing power.