These are 3 of my favorite famous leadership quotes.  I think these quotes inspire the leadership qualities we all strive to achieve.  If you buy into leadership theories, maybe you need to re-think that strategy and define leadership for yourself.  Get inspired.

If your actions inspire others to dream more, learn more, do more and become more, you are a leader.

– John Quincy Adams

Leaders are more powerful role models when they learn than when they teach.

– Rosabeth Moss Kantor

Great leaders are almost always great simplifiers, who can cut through argument, debate, and doubt to offer a solution everybody can understand.
– General Colin Powell.