Born in Madrid, he has devoted his academic life studying the history of ideas and, particularly, philosophy and politics in modern history and the European Enlightenment. Professor of History of Ideas and Political Forms in the Complutense University of Madrid for twenty years and since 2000 at the University Rey Juan Carlos, was director of the Center for Constitutional Studies and cream minister of the State Council between 1996 and 2004 is numerary academic of the Royal Academy of Spanish Language and History, and since September 2007 has chaired the group Editorial Unit. He has also tutored college of Infanta Cristina de Borbón and Professor of History and Humanities of Prince Philip. He has curated major historical exhibitions, Carlos III, Felipe II, Spain 1898 and others as' Enlightenment and liberal project "(2001)," The world that Cervantes lived "(2005-2006) and" Saragossa and Aragon: Crossroads of cultures " (2008).For his teaching and research work has been recognized, among others, in Montesquieu International Award (1985), the National History 1998 and 2000 (in collective works), Grupo Correo Prize for Human Values ​​(1996), the Grand Cross Alfonso X the Wise (1995) and Humanities Research Award "Julián Marías» Social Sciences (2006). Among his noteworthy essays, published under the same label, Montesquieu's thought. Science and philosophy in the eighteenth century (2005), a seminal work on one of the most important authors of Enlightenment, whose values ​​and ideas have articulated the mentality of the West until the mid-twentieth century, and Reason, sentiment and Utopia ( 2006), an approach to Enlightenment thought and thinkers and philosophers of the eighteenth century Europe whose influence in political and social science is critical to understand the contemporary intellectual space and finally iempre We worst is true (2009)