Successful leaders lead with the heart, not just the head. They possess qualities like empathy, compassion and courage. They also have the ability to establish deep, long-term and genuine relationships where others trust them.
Source: Incentive Interview with Bill George: True Leader: http://www.salesandmarketing.com/msg/content_display/incentive/e3i5f94aaae55a5d3db008e813d8c8c944a
"You gain strength, courage, and confidence by every experience in which you really stop to look fear in the face... The danger lies in refusing to face the fear, in not daring to come to grips with it... You must make yourself succeed every time. You must do the thing you think you cannot do." - Eleanor Roosevelt