Following are a number of back-translations as well as a sample translation for translators of Proverbs 18:2:

• Kupsabiny: “A foolish person does not like wisdom,
  but he is happy about what he himself thinks.” (Source: Kupsabiny Back Translation)
• Newari: “The fool does not care if others understand him or not,
  he only tries to persuade others of his own opinions.” (Source: Newari Back Translation)
• Hiligaynon: “A foolish man has really no desire to learn; what he only wants is to reveal his own opinion.” (Source: Hiligaynon Back Translation)
• Kankanaey: “The foolish-person does not like/want to learn, he only likes to tell what is in his mind.” (Source: Kankanaey Back Translation)
• English: “Foolish people do not want to understand anything;
  they only want to express their own opinions/say what they think.” (Source: Translation for Translators)