Perfectionism is a new player in the field of political philosophy. It is often rejected by liberal philosophers for it seems to have a conservative or paternalist bias. However, this paper argues first that perfectionism can have different political tendencies: it can be both liberal and illiberal, equalizing or anti-egalitarian, and be based on both limited or open conceptions of human nature. So perfectionism is not intrinsically conservative. Secondly, the paper aims to show that a strong case can be made for a liberal and egalitarian perfectionism, based on a rereading of Karl Marx. From this perspective it is not only unnecessary to criticize perfectionism from a liberal or egalitarian perspective, perfectionism may also help in justifying liberal egalitarianism in a new wa
