'''Kai Nielsen''' (social and atheist philosophy.  He is also known for his defense of utilitarianism, writing in response to Bernard Williams's criticism of it.

Nielsen got his B.A. at the University of North Carolina at Chapel Hill, and his Ph.D. at Duke University. He is the author of some 32 books and 415 articles. Member of the Royal Society of Canada and past president of the Canadian Philosophical Association, Nielsen is also one of the founding members of the ''Canadian Journal of Philosophy''.

==Books==
 
*''Wittgensteinian Fideism?'', 2006, ISBN 0-334-04005-1 
*''Atheism And Philosophy'', 2005, ISBN 1-59102-298-3 
*''Globalization And Justice'', 2002, ISBN 1-59102-054-9 
*''Naturalism and Religion'', 2001, ISBN 1-57392-853-4
*''Exploitation'', 2001, ISBN 0-391-04000-6 
*''Why be Moral''?, 1997, ISBN 0-87975-519-9 
*''Naturalism without Foundations'', 1996, ISBN 1-57392-076-2 
*''Philosophy Atheism'', 1996, ISBN 0-87975-289-0 
*''On transforming philosophy: A metaphilosophical inquiry'', 1995, ISBN 0-8133-0666-3 
*''God And The Grounding Of Morality'', 1991, ISBN 0-7766-0328-0
*''After the demise of the tradition: Rorty, critical theory, and the fate of philosophy'', 1991, ISBN 0-8133-8044-8 
*''Ethics without God'', 1990, ISBN 0-87975-552-0
*''God, Skepticism and modernity'', 1989, ISBN 0-7766-0241-1 
*''Marxism and the Moral Point of View: Morality, Ideology, and Historical Materialism'', 1989, ISBN 0-8133-0653-1 
*''Equality & Liberty: A Defense of Radical Egalitarianism'', 1986, ISBN 0-8476-7516-5
*''Philosophy & atheism : in defense of atheism'', 1985, ISBN 0-87975-289-0  
*''An Introduction to the Philosophy of Religion'', 1983, ISBN 0-312-43310-7 
*''Marx and Morality'', 1981, ISBN 0-919491-01-4 
*''Scepticism'', 1973, ISBN 0-333-10263-0 
*''Reason and practice; a modern introduction to philosophy'', 1971, ISBN 0-06-044836-9 
*''Contemporary Critiques of Religion'', 1971, ISBN 0-333-06963-3  

----
'''Philosophical conversations and debates''' in his '''BOOKS'''

*''Cosmopolitan Justice'', 2007 (forthcoming), ISBN 0-13-140388-5
*''Walking the Tightrope of Faith'', 1999, ISBN 90-420-0706-0 
*''Rethinking nationalism'', 1998, (Canadian journal of philosophy) ; ISBN  0585127565  
*''On the relevance of metaethics: New essays on metaethics'', 1996, ISBN 0-919491-21-9    
*''Méta-philosophie : reconstructuring philosophy?'', 1994, ISBN 0-919491-19-7  
*''Ethique et rationalité'', '''in French''', 1992, ISBN 2-87009-478-7 
*''Does God Exist? the Great Debate: The Great Debate'', 1990, ISBN 0-8407-7180-0
*''Search for Community in a Withering Tradition: Conversations Between a Marxian Atheist and a Calvinian Christian'', 1990, ISBN 0-8191-7990-6  
*''Analyzing Marxism : new essays on analytical Marxism / edited by Robert Ware & Kai Nielsen'', 1989, Canadian journal of philosophy. Supplementary volume. 0229-7051 ; 15, ISBN 0-919491-15-4 
*''Science Morality and Feminist Theory'', 1987, ISBN 0-919491-13-8 
*''New essays in ethics and public policy / edited by Kai Nielsen and Steven C. Patten'', 1982, ISBN 0-919491-08-1 
*''New essays on John Stuart Mill and utilitarianism / edited by Wesley E. Cooper, Kai Nielsen, and Steven C. Patten'', 1979, Canadian journal of philosophy. Supplementary volume. v. 5
*''New essays on contract theory / edited by Kai Nielsen and Roger A. Shiner'', 1977, Canadian journal of philosophy. Supplementary volume. v. 3
*''Philosophy & political action; essays edited for the New York Group of the Society for Philosophy and Public Affairs'', 1972, ISBN 0-19-501503-7

'''Kai Nielsen''' (1926 - ) est un philosophe et un professeur canadien. L'une des figures majeures de l'athéisme contemporain, il enseigne à l'Université Concordia. Il se spécialise dans la métaphilosophie, l'éthique et la philosophie sociale et politique. Il est connu pour sa défense de l'utilitarisme, en réponse à la critique de Bernard Williams.

Nielsen a obtenu son B.A. à l'Université de la Caroline du Nord à Chapel Hill et son Ph.D. à l'Université Duke. Il est l'auteur de trente-deux livres et quatre cent quinze articles. Membre de la Société royale du Canada et ancien président de l'Association canadienne de philosophie, il est aussi l'un des membres fondateurs du ''Canadian Journal of Philosophy ''

==Oeuvres==
 
*''Wittgensteinian Fideism?'', 2006, ISBN 0-334-04005-1 
*''Atheism And Philosophy'', 2005, ISBN 1-59102-298-3 
*''Globalization And Justice'', 2002, ISBN 1-59102-054-9 
*''Naturalism and Religion'', 2001, ISBN 1-57392-853-4
*''Exploitation'', 2001, ISBN 0-391-04000-6 
*''Why be Moral''?, 1997, ISBN 0-87975-519-9 
*''Naturalism without Foundations'', 1996, ISBN 1-57392-076-2 
*''Philosophy Atheism'', 1996, ISBN 0-87975-289-0 
*''On transforming philosophy: A metaphilosophical inquiry'', 1995, ISBN 0-8133-0666-3 
*''God And The Grounding Of Morality'', 1991, ISBN 0-7766-0328-0
*''After the demise of the tradition: Rorty, critical theory, and the fate of philosophy'',1991, ISBN 0-8133-8044-8 
*''Ethics without God'', 1990, ISBN 0-87975-552-0
*''God, Skepticism and modernity'', 1989, ISBN 0-7766-0241-1 
*''Marxism and the Moral Point of View: Morality, Ideology, and Historical Materialism'', 1989, ISBN 0-8133-0653-1 
*''Equality & Liberty: A Defense of Radical Egalitarianism'', 1986, ISBN 0-8476-7516-5
*''Philosophy & atheism : in defense of atheism'', 1985, ISBN 0-87975-289-0  
*''An Introduction to the Philosophy of Religion'',1983, ISBN 0-312-43310-7 
*''Marx and Morality'', 1981, ISBN 0-919491-01-4 
*''Scepticism'', 1973, ISBN 0-333-10263-0 
*''Reason and practice; a modern introduction to philosophy'', 1971, ISBN 0-06-044836-9 
*''Contemporary Critiques of Religion'', 1971, ISBN 0-333-06963-3  