But, I assume that the camp best fitted to the wants of the average outer is the one that combines the essentials of dryness, lightness, portability, cheapness and is easily and quickly put up.
"Woodcraft"
George W. Sears
It seems, in fact, to be merely the exertion of a man's physical force; and its value above that of a machine of equal power arises from its portability, and from the facility of directing its efforts to arbitrary and continually fluctuating purposes.
"On the Economy of Machinery and Manufactures"
Charles Babbage
Copper, indeed, being comparatively low in value, is wanting in portability.
"Political economy"
W. Stanley Jevons