Quotation from: The Little Lady of the Big House

Written by: Jack London

"Well, Dick makes his bookkeepers keep track of my goldfish in the
same way. I'm charged every hour of any of the ranch or house labor I
use on the fish--postage stamps and stationery, too, if you please. I
have to pay interest on the plant. He even charges me for the water,
just as if he were a city water company and I a householder. And still
I net ten per cent., and have netted as high as thirty. But Dick
laughs and says when I've deducted the wages of superintendence--my
superintendence, he means--that I'll find I am poorly paid or else am
operating at a loss; that with my net I couldn't hire so capable a
superintendent.