These lines from the Declaration of Independence are an example of the use of LOGOS.
The logos is the material of the argument, the way in which one reasoning progresses towards the next, as to show that the conclusion to which it tends is not only correct but also so necessary and reasonable as to be the only one. The logos as a persuasive approach seeks to influence listeners through reason.
The logos through the different resources seek that the arguments sound reasonable, because these in turn are elaborated with accepted premises; However, Aristotle also points out that many of the accepted premises are contradictory to each other, so it must also be taken into account when using the logos as a mode of persuasion.