Stem cell research is a controversial issue in bioethical debates because, although stem cells have great therapeutic potential, such research involves the creation, use, and destruction of human embryos. Some debates center on the question of whether embryonic stem cells have a moral status. This paper contends that in the West, the discussion on whether research on embryonic stem cells is ethically acceptable is usually approached from the perspective of reason or rationality, as one sees in legal provisions pertaining to the issue. Very often, (instrumental) rationality is taken as the primary source for moral and legal justification. The paper analyzes the Kantian notion of “moral status,” pointing out the limits of this way of thinking...