David King

“France aspired, in other words, to create a situation whereby “every ambition and unjust enterprise [would] find both its condemnation and a perpetual obstacle.” This might sound like a grand, unattainable ideal, he said, but Europe really had no choice. Without such principles in place, held firm and rigorously guarded, international affairs would soon degenerate into a reckless pursuit of self-interest and power—just as that reckless scramble had plunged the Continent into that “long and deadly horror” of the last quarter century. Now that Napoleon was defeated, Europe must take this opportunity to crown justice as the “chief virtue” of international affairs. Leaders of states must pledge that they would never act nor acquiesce in any deed that could not be considered just, “whatever consideration [that] may arise,” because only justice, he said, can produce a true state of harmony and stability. Anything short of that would create a misleading and meaningless false order, destined to collapse when the first powerful state decided to take advantage of its superior strength.”
― David King, Vienna 1814: How the Conquerors of Napoleon Made War, Peace, and Love at the Congress of Vienna