The generic reasons which are open to consideration under the contractualist formulation are any reasons which we judge as relevant to reasonable rejectability. This requires that we exercise our judgement in determining whether such reasons would be suitable grounds for mutual recognition. Therefore, that a principle would negatively affect a person's well-being is not the only kind of reason which may be brought against a principle. Other considerations, such as how a burden would be imposed by a principle, can serve as reasonable grounds for rejection.