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Self expressions : mind, morals, and the meaning of life
New York : Oxford University Press, c1996
Kunsthistorisches Institut Florenz , Kubikat
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Varieties of moral personality : ethics and psychological realism
Cambridge, MA : Harvard University Press, 1991
Kunsthistorisches Institut Florenz , Kubikat
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The really hard problem : meaning in a material world
Cambridge, Mass. : MIT Press, c2007
Kunsthistorisches Institut Florenz , Kubikat