Cyropaedia

And finally I shall take along those of an age[*](Special arrangements for artisans) for military service who are smiths and carpenters and cobblers, in order that, if anything is wanted in the army in the line of their trades also, we may not suffer for lack of it. And they shall be relieved of assignments to duty under arms, but they shall occupy the position assigned to them and there ply their trades for pay at the order of whoever wishes their services.