If you are foolish enough to be contented, don’t show it, but grumble with the rest; and if you can do with a little, ask for a great deal. Because if you don’t you won’t get any.

Jerome K. Jerome (1859-1927) English writer, humorist [Jerome Klapka Jerome]

Idle Thoughts of an Idle Fellow, “On Getting On in the World” (1886)
    (Source)

First published in Home Chimes (1885-01-24).