Lucretius believed the world was composed solely of matter and that all phenomenon could be understood as resulting from purely natural causes. Lucretius, like Epicurus, felt that religion was born of fear and ignorance, and that understanding the natural world would free people of the limitations it brought.<ref>{{cite web |url=http://www.utm.edu/research/iep/l/lucretiu.htm |title=Lucretius [Internet Encyclopedia of Philosophy] |accessdate=2008-06-14 |format= |work=}}</ref> | Lucretius believed the world was composed solely of matter and that all phenomenon could be understood as resulting from purely natural causes. Lucretius, like Epicurus, felt that religion was born of fear and ignorance, and that understanding the natural world would free people of the limitations it brought.<ref>{{cite web |url=http://www.utm.edu/research/iep/l/lucretiu.htm |title=Lucretius [Internet Encyclopedia of Philosophy] |accessdate=2008-06-14 |format= |work=}}</ref> |