Over the course of the campaign against Hillary Clinton and now McCain, Obama has elaborated more and more the ideas that would undergird his foreign policy as president.

• 美国政治家始终致力于将这两者结合起来，这也是理所当然的。一个不切实际的外交政策肯定会失败，一个缺乏理想的外交政策又非美国所求。