The Further Adventures of Robinson Crusoe by Daniel Defoe Chapter 8 Page 20

plainly, had I set up the sloop, and left it among them, they would, upon every light disgust, have separated, and gone away from one another; or perhaps have turned pirates, and so made the island a den of thieves, instead of a plantation of sober and religious people, as I intended it; nor did I leave the two pieces of brass cannon that I had on board, or the extra two quarter-deck guns that my nephew had provided, for the same reason.

I thought it was enough to qualify them for a defensive war against any that should invade them, but not to set them up for an offensive war, or to go abroad to attack others; which, in the end, would only bring ruin and destruction upon them. I reserved the sloop, therefore, and the guns, for their service another way, as I shall observe in its place.