This diploma thesis aims to argue for compatibility of liberal perfectionist political theory with liberal-democratic system and sketch desirable consequences of liberal- perfectionistic policies in practice. It is divided into three main parts. The first one presents the perfectionistic theory and tries to clearly define ethical, political and liberal perfectionism. The second part argues for compatibility of liberal- perfectionistic theory with democratic practices through referring to intrinsic contradiction of principle of state neutrality as presented by John Rawls. The last part presents considerations about liberal-perfectionist practice, mainly in civic education, and its possible applications for weakening of populism.