Leadership is the art of getting someone else to do something you want done because he wants to do it.

I have for some time urged that a nuclear abolition summit to mark the effective end of the nuclear era be convened in Hiroshima and Nagasaki on the 70th anniversary of the bombings of those cities with the participation of national leaders and representatives of global civil society.

The day before the anniversary of D-Day we lost a man who was equaled by few and surpassed by none as a leader in the cause of freedom: Ronald Reagan.

People have said I'm the candidate of anger. Well we have a right to be angry. We lost 3 million jobs. We lost our place as the moral leader of the world.

As a young black boy it made me proud to see black leaders that did something amazing and made the world change.

Half a century ago the amazing courage of Rosa Parks the visionary leadership of Martin Luther King and the inspirational actions of the civil rights movement led politicians to write equality into the law and make real the promise of America for all her citizens.

Outstanding leaders go out of their way to boost the self-esteem of their personnel. If people believe in themselves it's amazing what they can accomplish.

I have tried to be a leader. I have tried in my role of being one of the first women at Google let alone the first woman to have a baby to really try to set the tone that this is a great place to work for diversity reasons.

But no nation can base its survival and development on luck and prayers alone while its leadership fritters away every available opportunity for success and concrete achievement.

I believe that no man who holds a leader's position should ever accept favors from either side. He is then committed to show favors. A leader must stand alone.