3Leo Strauss, What is Political Philosophy?, Free Press, 1959,p. 17.
4Jurgen Habermas, " Reconciliation through the Public Use of Reason: Remarks on John Rawls's Political Liberalism" ,Journal of Philosophy 92 ( 3 ) , 1995.
5Leo Strauss, What is Political Philosophy? p. 27.
6John Rawls,A Theory of Justice, revised edition, Harvard University Press, 1999, pp. 3 - 4.