History of the Peloponnesian War

"Against such a power we shall therefore need not a fleet only, and with it a small army, but there must great forces go along of land soldiers, if we mean to do anything worthy of our design and not to be kept by their many horsemen from landing; especially if the cities there, terrified by us, should now hold all together, and none but the Egestaeans prove our friends and furnish us with a cavalry to resist them.

And it would be a shame either to come back with a repulse or to send for a new supply afterwards, as if we had not wisely considered our enterprise at first. Therefore we must go sufficiently provided from hence, as knowing that we go far from home and are to make war in a place of disadvantage, and not as when we went as confederates to aid some of our subjects here at home, where we had easy bringing in of necessaries to the camp from the territories of friends. But we go far off, and into a country of none but strangers, and from whence in winter there can hardly come a messenger unto us in so little as four months.

"Wherefore I am of opinion that we ought to take with us many men of arms of our own, of our confederates, and of our subjects; and also out of Peloponnesus as many as we can get, either for love or money; and also many archers and slingers, whereby to resist their cavalry; and much spare shipping, for the more easy bringing in of provision. Also our corn, I mean wheat and barley parched, we must carry with us from hence in ships; and bakers from the mills, hired and made to work by turns, that the army, if it chance to be weatherbound, may not be in want of victual. For being so great, it will not be for every city to receive it. And so for all things else, we must as much as we can provide them ourselves and not rely on others. Above all, we must take hence as much money as we can; for as for that which is said to be ready at Egesta, think it ready in words, but not in deeds.

For although we go thither with an army not only equal unto theirs, but also (excepting their men of arms for battle) in everything exceeding it, yet so shall we scarce be able both to overcome them and withal to preserve our own.