diligence [diligences](qualities of a hard worker, including conscientiousness, determination, perseverance) noun [UK: ˈdɪ.lɪ.dʒəns] [US: ˈdɪ.lə.dʒəns]
perseverance(persistent determination to adhere to a course of action; insistence) noun [UK: ˌpɜː.sɪ.ˈvɪə.rəns] [US: ˌpər.sə.ˈvɪ.rəns]