While in Congress, Lincoln had declared himself plainly as opposed to slavery; and in public speeches not less than private conversations he had not hesitated to express his convictions on the subject. In 1850 he said to Major Stuart: "The time will soon come when we must all be Democrats or Abolitionists. When that time comes, _my mind is made up_. The slavery question cannot be compromised." The hour had now struck in which Lincoln was to espouse with his whole heart and soul that cause for which finally he was to lay down his life. In the language of Mr. Arnold, "He had bided his time. He had waited until the harvest was ripe. With unerring sagacity he realized that the triumph of freedom was at hand. He entered upon the conflict with the deepest conviction that the perpetuity of the Republic required the extinction of slavery. So, adopting as his motto, 'A house divided against itself cannot stand,' he girded himself for the contest. The years from 1854 to 1860 were on his part years of constant, active, and unwearied effort. His position in the State of Illinois was central and commanding. He was now to become the recognized leader of the anti-slavery party in the Northwest, and in all the Valley of the Mississippi. Lincoln was a practical statesman, never attempting the impossible, but seeking to do the best thing practicable under existing circumstances. He knew that prohibition in the territories would result in no more slave states and no slave territory. And now, when the repeal of the Missouri Compromise shattered all parties into fragments, he came forward to build up the Free Soil party and threw into the conflict all his strength and vigor. The conviction of his duty was deep and sincere. Hence he pleaded the cause of liberty with an energy, ability, and power which rapidly gained for him a national reputation. Conscious of the greatness of his cause, inspired by a genuine love of liberty, animated and made strong by the moral sublimity of the conflict, he solemnly announced his determination to speak for freedom and against slavery until--in his own words--wherever the Federal Government has power, 'the sun shall shine, the rain shall fall, and the wind shall blow upon no man who goes forth to unrequited toil.'" The absorbing political topic in 1855 was the contest in Kansas, which proved the battle-ground for the struggle over the introduction of slavery into the territories north of the line established by the "Missouri Compromise." Lincoln's views on the subject are defined in a notable letter to his friend Joshua Speed, a resident of Kentucky. The following passages show, in Lincoln's own words, where he stood on the slavery question at this memorable epoch: SPRINGFIELD, AUGUST 24, 1855.