n. excessive interest in one's self; belief that one should be interested in one's self rather than in others
His egoism prevented him from seeing the needs of his colleagues.
Sentence in Classic:
If this be an ordered selfishness, then we should pause before we condemn any one for the vice of egoism, for there may be deeper root for its causes than we have knowledge of.
But Lily had known the species before: she was aware that such a guarded nature must find one huge outlet of egoism, and she determined to be to him what his Americana had hitherto been: the one possession in which he took sufficient pride to spend money on it.
House of Mirth By Edith Wharton Context
There were not lacking, however, evidences of what we may call the intelligent egoism of a youth who is charmed with the indolent, careless life of an only son, and who lives as it were in a gilded cage.
The Count of Monte Cristo By Alexandre Dumas Context