Need help translating a Latin phrase

I am trying to translate the following Latin phrase into English:

Uva uvum vivendo varia fit

But I can’t find an online translator that does Latin to English. Doing Italian I get “Grape uvum living varied fit” so I still don’t really know what it means.

Can anyone translate or help me find a free, online translator? I’ve already looked at Google but all I could find was single word dictionaries and that doesn’t do me a lot of good.

A little help, oh Teeming Millions? Thanks!

Plugging the whole thing into Google, I get

“A grapes [changes,becomes variegated] from seeing other grapes”.

Roughly, “A bad apple spoils the bunch”.

Further reading suggests that this is from Juvenal’s, and that the exact quote you supply is a slight misquote. Regretably, I don’t have my quote books handy and cannot verify that

Ok, thanks.

FYI, this is what’s written on the sign going in to the town of Lonesome Dove. This and “we don’t rent pigs”.

From here.