per·son·al·ism 
(pûrsə-nə-lĭz′əm)
(pûrsə-nə-lĭz′əm)n.
1. The quality of being characterized by purely personal modes of expression or behavior; idiosyncrasy.
2. Philosophy Any of various theories regarding the person or personality as the key to the interpretation of reality.
person·al·ist adj.& n.
per′son·al·istic adj.