"My friends,I ask you to join in this historic journey to have the courage to choose change.

VOA: special.2009.09.13

My fellow citizens of the world: ask not what America will do for you, but what together we can do for the freedom of man."

VOA: special.2009.01.19

And in 1961, during the Cold War with the Soviet Union, John Kennedy urged people to take an active part in the future: "And so, my fellow Americans, ask not what your country can do for you - ask what you can do for your country.

VOA: special.2009.01.19

"My friends,I ask you to join in this historic journey to have the courage to choose change,".

VOA: standard.2009.08.26

"And every time I ask myself,as I do, these questions my answer is yes, we are taking the right action, the action that is necessary to safeguard both our country and promote security in the world,"

VOA: standard.2009.09.04