Proponents of ethical altruism maintain that individuals are morally obligated to act altruistically.
pɹəpˈoʊnənts ʌv ˈɛθɪkəl ˈɔːltɹuːˌɪzəm meɪntˈeɪn ðæt ˌɪndᵻvˈɪdʒuːəlz ɑːɹ mˈɔːɹəli ˈɑːblᵻɡˌeɪɾᵻd tʊ ˈækt ˌɔːltɹuːˈɪstɪkli.