Following are a number of back-translations as well as a sample translation for translators of Proverbs 14:29:

• Kupsabiny: “A person who endures things, is wise,
  but the short-tempered reveals his foolishness.” (Source: Kupsabiny Back Translation)
• Newari: “One who is able to keep his patience [does not get angry] is wise.
  those who show their anger,
  only show their foolishness.” (Source: Newari Back Translation)
• Hiligaynon: “A patient man is very wise, but a man who easily gets angry shows his foolishness.” (Source: Hiligaynon Back Translation)
• Kankanaey: “A patient person, he is greatly wise, but one who easily gets-angry, he is extremely foolish.” (Source: Kankanaey Back Translation)
• English: “Those who do not quickly become angry are very wise;
  by quickly becoming angry, people show that they are foolish.” (Source: Translation for Translators)