Following are a number of back-translations as well as a sample translation for translators of Proverbs 17:18:

• Kupsabiny: “It is not good for a person to stand for (give surety for) the debt of another (person).” (Source: Kupsabiny Back Translation)
• Newari: “Only those who don’t know
  what is good and what isn’t
  will become security
  for the business transactions of strangers.” (Source: Newari Back Translation)
• Hiligaynon: “A man who promises to pay the debt of others has no understanding.” (Source: Hiligaynon Back Translation)
• Kankanaey: “The one who promises to stand-for the debt of a companion is mindless.” (Source: Kankanaey Back Translation)
• English: “If someone borrows money from another person, it is foolish for you to promise that you will pay the money back
  if that other person is unable to pay back the money that he borrowed.” (Source: Translation for Translators)