We are the most powerful nation on earth. No external power, no terrorist organization, can defeat us. But we can defeat ourselves by getting caught in a quagmire. George Soros
Individual liberty is individual power, and as the power of a community is a mass compounded of individual powers, the nation which enjoys the most freedom must necessarily be in proportion to its numbers the most powerful nation. John Quincy Adams
While The United States is the most powerful nation the world has ever seen, it is also the most detested nation that the world has ever known. Harold Pinter
The greatest nation and most powerful nation on Earth. Enda Kenny
Our nation is today a powerful nation. Mahmoud Ahmadinejad
In 1763 the English were the most powerful nation in the world. Albert Bushnell Hart