 The assumption of reasonable persons’ “strict compliance” with principles of justice within a well-ordered society is part of what Rawls calls “ideal theory,” which is characteristic of social contract views. (Kant’s ideal of a Kingdom of Ends involves a similar assumption in ideal theory.) To determine the most appropriate principles of justice to govern relations among ourselves, we are discover the principles that would be generally accepted and endorsed among free and equal reasonable and rational persons with a sense of justice in an ideal society where these principles were fully realized and generally complied with. The assumption of strict compliance is made within contract views to insure the integrity of the agreement: it means the parties will not renege but can rely on each other to act according to the principles agreed to and that their agreement is not in vain (TJ 145). More generally, Rawls says the same principles chosen for an ideal society are to be applied to assess the justice of institutions and laws in our own non-ideal world where societies and individuals only partially comply with them (if at all). Principles of justice that apply to an ideal society lay bare how much our current circumstances depart from ideal justice; injustices are to be “identified by the extent of the deviation from perfect justice.” (TJ 216). Moreover, ideal theory provides a target for non-ideal theory; the principles of justice “define then a perfectly just scheme [and] set up an aim to guide the course of social reform.” (TJ 215) Finally, ideal theory provides a way to discover universal principles that apply to all social worlds and circumstances. By determining the principles of justice that would apply in an ideal society, we can claim to have discovered objective universal principles that can be applied to every society to ascertain the degree of injustice and to guide reform.