"If we could first know where we are and whither we are tending, we could better judge what to do and how to do it. We are now far into the fifth year since a policy was initiated, with the avowed object and confident promise of putting an end to slavery agitation. Under the operation of that policy, that agitation has not only not ceased, but has constantly augmented. In my opinion it will not cease until a crisis shall have been reached and passed. 'A house divided against itself cannot stand.' I believe this Government cannot endure permanently, half slave and half free. I do not expect the Union to be dissolved--I do not expect the house to fall--but I do expect it will cease to be divided. It will become all one thing or all the other. Either the opponents of slavery will arrest the further spread of it, and place it where the public mind shall rest in the belief that it is in course of ultimate extinction; or its advocates will push it forward till it shall become alike lawful in all the States, old as well as new, North as well as South." Then followed his demonstration, through the incidents of the Nebraska legislation, the Dred Scott decision, and present political theories and issues, which would by and by find embodiment in new laws and future legal doctrines. The repeal of the Missouri Compromise, the language of the Nebraska bill, which declared slavery "subject to the Constitution," the Dred Scott decision, which declared that "subject to the Constitution" neither Congress nor a Territorial Legislature could exclude slavery from a Territory--the argument presented point by point and step by step with legal precision the silent subversion of cherished principles of liberty. "Put this and that together," said he, "and we have another nice little niche, which we may ere long see filled with another Supreme Court decision, declaring that the Constitution of the United States does not permit a State to exclude slavery from its limits.... Such a decision is all that slavery now lacks of being alike lawful in all the States.... We shall lie down," continued the orator, "pleasantly dreaming that the people of Missouri are on the verge of making their State free; and we shall awake to the reality instead, that the Supreme Court has made Illinois a slave State."