  Supererogationism is clearly an oxymoron: for, why should an act that is good and morally commendable and will conduce to the well-being of another person (or, other persons) fail to exact obligation or compel performance? We would normally think that there is a moral connection between ‘good’ and ‘ought’, and that therefore a morally good act ought to be performed: if an act is morally good, then it ought to be performed.