But, fellow-citizens, I shall not leave the argument at this stage. It is not enough to show that slaves can render important assistance, by labor, by information, or by arms, and that there is no reasonable objection to calling upon them, with other loyalists, in support of the Union. The case is stronger still. _Without the aid of the slaves this war cannot be ended successfully._ Their alliance is, therefore, a necessity. In making this assertion I know well the responsibility I assume, nor do I assume it lightly. But the time has come when the truth must be told. Let me be understood. As war is proverbially uncertain, I cannot doubt that fortune will again light upon our arms. The force of the Rebellion may be broken even without appeal to the slaves. But I am sure that with the slaves our victory will be more prompt, while without them it can never be effectual completely to crush out the Rebellion. It is not enough to beat armies. Rebel communities, envenomed against the Union, must be restored, and a wide-spread region quieted. This can be done only by removal of the disturbing cause, and the consequent assimilation of the people, so that no man shall call another master. If Slavery be regarded as a disease, it must be extirpated by knife and cautery; for only in this way can the healthful operations of national life be regained. If regarded as a motive, it must be expelled from the system, that it may no longer exercise its malign influence. So long as Slavery continues, the States in which it exists will fly madly from the Union, but with its destruction they will lose all such tendency. The Slave States, by the influence of Slavery, are now _centrifugal_; but with Slavery out of the system, they will be _centripetal_. Such is the law of their being. And it should be our present policy to take advantage of this law for the benefit of the Union. Nay, from the necessity of the case, this must be done. * * * * *