Following are a number of back-translations as well as a sample translation for translators of Ecclesiastes 2:23:

• Kupsabiny: “A person puts all his efforts into work every day and the matters disturb him all the time, so that he does not even think/remember whether it is night. I also saw that all this is empty.” (Source: Kupsabiny Back Translation)
• Newari: “All his days his work is only pain and trouble. Even at night his heart has no peace. This matter is meaningless.” (Source: Newari Back Translation)
• Hiligaynon: “All that he does in his entire life is- only -causing him -bad feelings. Even at night his mind can- not -rest. This too has no value!” (Source: Hiligaynon Back Translation)
• English: “Every day the work that they do causes them to experience pain and to be worried. And during the night, their minds are not able to rest. That also is very frustrating.” (Source: Translation for Translators)