Is it possible to communicate ethics across cultural borders? Not according to representativesof “the incommensurability thesis”, who claim that values and norms are culturally bounded.This article argues against this thesis. A first problem is that cultures and traditions are seenas comprehensive, delimited, and exclusive. Normally, however, a culture develops from andis in dialogue with other cultures. Further, the inner diversity of cultures and traditions opensthe possibility of communication and shared understandings across cultural borders. Finally, theteaching and discussion of cross-cultural ethics provide practical evidence of the possibility ofdialogue and mutual understanding.