 Furthermore, supererogation is closely related to the ideal of moral perfection. For the anti-supererogationist we are under a duty to do the very best, to be perfect. But this may be a demand with which people would not be always able to comply but a counter-productive expectation which would lead to despair and constant fear of failure (Benn 2018a). Allowing space for the supererogatory enables human beings to try to go beyond the required and towards perfection without a sense of guilt and failure.