not having sense enough to know honest air from poison, and the dry land from a vile, pestiferous slough. I think it most probable—though, of course, it's only an opinion—that you'll all have the deuce to pay before you get that malaria out of your systems.
Interp: There is no remedy, sir, but you must die. The general says, you that have so traitorously discover’d the secrets of your army, and made such pestiferous reports of men very nobly held, can serve the world for no honest use; therefore you must die. Come, headsman, off with his head.
William Shakespeare. All's Well That Ends Well (1623)
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In France there is yet a more pestiferous sort of people, for the whole country is full of soldiers, still kept up in time of peace (if such a state of a nation can be called a peace); and these are kept in pay upon the same account that you plead for those idle retainers about noblemen: this being a maxim of those pretended statesmen, that it is necessary for the public safety to have a good body of veteran soldiers ever in readiness.