That our government should have been maintained in its original form from its establishment until now is not much to be wondered at. It had many props to support it through that period, which now are decayed and crumbled away. Through that period, it was felt by all to be an undecided experiment; now, it is understood to be a successful one.

The quote by Abraham Lincoln reflects on the evolution of the U.S. government from its establishment to his time in office. Lincoln acknowledges that the government, in its early years, was an "undecided experiment"—unproven and untested—but over time it became clear that the Constitutional system had succeeded. He also points out that the government had various supports—both institutional and social—that helped maintain it during its formative years, but these supports had weakened or faded by his time. This reflects Lincoln's recognition of the difficulties and challenges faced by the government as it matured, and the realization that it had endured and become more robust over time.

Lincoln was referring to the period of early American history, particularly after the American Revolution and the formation of the United States. At the time of the nation’s founding, many saw the new government as an experiment, uncertain of its longevity and success. The United States was a pioneering democracy, and there were doubts about whether a government based on popular sovereignty could thrive. By Lincoln’s presidency, however, the experiment had proven successful, and the U.S. had established itself as a stable and enduring political system.

The origin of this quote can be traced to Lincoln’s reflections during the Civil War, when the Union was under threat and questions of the nation’s future stability were paramount. The United States was experiencing its most significant test, and Lincoln sought to reassure both the American people and the world that the American system was not just an ideal, but one that had worked and should continue to endure. This was especially critical as the Civil War was seen by many as a pivotal moment in proving the viability of democracy in the face of division and conflict.

In a broader context, Lincoln’s words underscore the evolution of the U.S. government from its uncertain beginnings to a more confident and established system. It highlights the resilience of the American political system, which, despite challenges and weaknesses, was able to survive and thrive. Lincoln’s statement also speaks to the idea that democracy, while difficult and imperfect, can ultimately prove to be a successful and enduring form of governance if it adapts to the needs of its people.