Ethics cannot be based on the authoritative certainty given by mathematics and logic, or prescribed directly from the empirical findings of science.
ˈɛθɪks kænˈɑːt biː bˈeɪst ɔnðɪ ɐθˈɔɹᵻtˌeɪɾɪv sˈɜːtənti ɡˈɪvən baɪ mˌæθɪmˈæɾɪks ænd lˈɑːdʒɪk, ɔːɹ pɹɪskɹˈaɪbd dᵻɹˈɛktli fɹʌmðɪ ɛmpˈɪɹɪkəl fˈaɪndɪŋz ʌv sˈaɪəns.