I thought imperative for lugere was lugê. That should be a straight bar over the ê, but this is the best I can do with HTML right now, and I'm too lazy to look it up. My dictionary lists lugêre as 2nd conjugation, not 3rd, so for plural it'd be lugête. http://www.dl.ket.org/latinlit/grammar/imper.htm for example. This corresponds to what I remember, and to my Latin book. Also it says on that site that "horatory subjunctive" may be the right thing to use for something like this; I honestly have no idea. I do know that proverbs and such things in Latin are often fairly non-standard grammar, or else use grammar that's more advanced than anything I know. It's been a while since I studied Latin though.