I come to the last and the greatest guarantee of all—that is, the League of Nations. ... [This] great and hopeful experiment is only rendered possible by the other conditions. ... Without disarmament, without the indication which this War has given that the nations of the world are determined at all costs to enforce respect for treaties, the League of Nations would be just like other Conventions in the past—something that would be blown away by the first gust of war or of any fierce dispute between the nations. It is this War, it is the Treaty that concludes this War, which will make the League of Nations possible. ... There are many things the world has realised and is prepared to take into account and to provide against. This League of Nations is an attempt to do it by some less barbarous methods than war. Let us try it. I beg this country to try it seriously, and to try it in earnest. It is due to mankind that we should try it. Anything except the horror of the last four and a half years!

At this hour it is surely not necessary to repeat that it is neither an African dispute, nor an incident in expansionist rivalry between two nations, nor a colonial war, but a vital test of the efficacy of the League and of the loyalty of its members to the Covenant to which they have put their names.
We have tried in these post-war years to build up a new order by means of which we hope to spare mankind in the future the scourge of war. We who are members of the League have sought collectively to create a new ideal and a new international order. If we fail, even though that failure be not final, we shall have shattered for a generation, and it may be more, the hopes which mankind has placed in this new endeavour. Who can tell what the consequences of such disappointment may be? If, on the other hand, the League of Nations can on this occasion prove itself able to withstand the strain placed upon it—and I believe it will—then, even though many serious problems will yet surround us, the world will face them fortified in its faith and inspired to fresh endeavour by the victory of its own ideals.
For the first time, I believe, in the history of the world, an attempt is being made to operate an international system based not merely upon power but upon certain fixed principles of equity. This is an adventure in which we may all be proud to play our part.

I am utterly convinced that Science and Peace will triumph over Ignorance and War, that nations will eventually unite not to destroy but to edify, and that the future will belong to those who have done the most for the sake of suffering humanity.

More important still, perhaps, the sanctity of treaties and of the public law of Europe has been finally vindicated; and last, and most important of all, we have set up in the League of Nations a new international polity which promises, if it is given free scope and full authority, first to bring about progressive disarmament, and next to provide in future a rational and humane substitute for the ruinous arbitrament of war.

The future liberties of Europe depend upon regulating disputes between nations by justice and law; and upon maintaining the sanctity of treaties, and thus making peace secure. That is the policy for which the League of Nations was created to be the instrument. If it does not prevail, then there will be renewed competition in armaments; nations ruining themselves by expensive preparations for new war, which will make their ruin complete. The result will be wars or more revolutions, probably both; and that in no very long time. No nation, not even France herself, will escape the catastrophe.

Take Article 12 of this Covenant: "The Members of the League"—which means the nations of the earth—"agree that if there should arise between them any dispute likely to lead to a rupture, they will submit the matter either to arbitration or to inquiry." ... Supposing that had been in existence in 1914, it would have been difficult for Germany and Austria to have gone to War. They could not have done it, and, if they had, America would have been in on the first day, not three years afterwards, which would have...made all the difference. You could not have had the War in 1914 had the League of Nations been in existence. With this machinery I am not going to say you will never have war. Man is a savage animal. ... If it avert one war, the League of Nations will have justified itself. If you let one generation pass without the blood of millions being spilt, and without the agony which fills so many homes, the League of Nations will have been justified. I beg no one to sneer at the League of Nations. Let us try it. I believe it will succeed in stopping something. It may not stop everything. The world has gone from war to war, until at last we have despaired of stopping it. But society with all its organisations has not stopped every crime. What it does is that it makes crime difficult or unsuccessful, and that is what the League of Nations will do. Therefore I look to it with hope and with confidence.

And in the time to come, the time that must come, when these colonies of ours have grown in stature, in population, and in strength, this league of kindred nations, this federation of Greater Britain, will not only provide for its own security, but will be a potent factor in maintaining the peace of the world. (Cheers.)

I am an optimist and I believe that together we shall be able now to make the right historical choice so as not to miss the great chance at the turn of centuries and millenia and make the current extremely difficult transition to a peaceful world order. A balance of interests rather than a balance of power, a search for compromise and concord rather than a search for advantages at other people's expense, and respect for equality rather than claims to leadership — such are the elements which can provide the groundwork for world progress and which should be readily acceptable for reasonable people informed by the experience of the twentieth century.
The future prospect of truly peaceful global politics lies in the creation through joint efforts of a single international democratic space in which States shall be guided by the priority of human rights and welfare for their own citizens and the promotion of the same rights and similar welfare elsewhere. This is an imperative of the growing integrity of the modern world and of the interdependence of its components.