The circular plans of carrying earth are very useful, inasmuch as
men never stop in their work; and it is done in many ways. By one of
these ways men carry the earth on their shoulders, by another in
chests and others on wheelbarrows. The man who carries it on his
shoulders first fills the tub on the ground, and he loses time in
hoisting it on to his shoulders. He with the chests loses no time.
[Footnote: The subject of this text has apparently no connection
with the other texts of this section.]

Irony (1332).