How we cite our quotes: (Sentence)
Quote #4
Our policy in regard to Europe, which was adopted at an early stage of the wars which have so long agitated that quarter of the globe, nevertheless remains the same, which is, not to interfere in the internal concerns of any of its powers; to consider the government de facto as the legitimate government for us; to cultivate friendly relations with it, and to preserve those relations by a frank, firm, and manly policy, meeting in all instances the just claims of every power, submitting to injuries from none. (21)
Monroe includes a kind of a sly insult here. It's like saying, "Hey, we've been nice this whole time. We've been happy to deal with whoever's in power during your unending warfare." He uses the power struggles that have been happening over many decades in Europe to boost the image of the U.S.
Quote #5
It is equally impossible, therefore, that we should behold such interposition in any form with indifference. If we look to the comparative strength and resources of Spain and those new Governments, and their distance from each other, it must be obvious that she can never subdue them. (24-25)
At the end of the Monroe Doctrine, the president makes the argument that re-taking the Latin American colonies would just be logistically difficult. Spain shouldn't even bother, because they're no longer powerful enough to do it. Seriously Spain: it's not worth the trouble.