A Lincolnesque leader is confident enough to be humble - to not feel the need to bluster or dominate, but to be sufficiently sure of one's own judgment and self-worth to really listen and not be threatened by contrary advice.
Evan Thomas, Staff of Newsweek (2009). “A Long Time Coming: The Inspiring, Combative 2008 Campaign and the Historic Election of Barack Obama”, p.186, PublicAffairs
