Wordnet 3.0
NOUN (1)
1. 
 elevated ideals or conduct; 
 the quality of believing that ideals should be pursued; 
[syn: high-mindedness, idealism, noble-mindedness]
The Collaborative International Dictionary of English v.0.48:
High-mindedness \High"-mind`ed*ness\, n.
   The quality of being highminded; nobleness; magnanimity.
   [1913 Webster]
WordNet (r) 3.0 (2006):
high-mindedness
    n 1: elevated ideals or conduct; the quality of believing that
         ideals should be pursued [syn: high-mindedness,
         idealism, noble-mindedness]