"When the entire abolition of slavery takes place, it will be an event which must be most pleasing to every generous mind, and to every friend of human nature." Thomas Jefferson writes: "The spirit of the master is abating: that of the slave rising from the dust; his condition mollifying; the way, I hope, preparing, under the auspices of Heaven, for a total emancipation." He continues, in his plan for a Constitution for Virginia: "Nothing is more certainly written in the book of fate, than that these people are to be free." In a letter to Dr. Gordon, on Lord Cornwallis's invasion of Virginia, Mr. Jefferson says: "He carried off also about thirty slaves, (Jefferson's.) Had this been to give them freedom, he would have done right; but it was to consign them to inevitable death from small-pox and putrid fever then raging in his camp." I conclude here my citations from the united voices of some of the best men of the country, before and after the Revolution, against slavery as an evil, and a great national sin, not that I have exhausted their utterances, but that my time admits of no more. The Republican party proclaims no doctrine so _ultra_ as theirs, uses no language so strong as that of those Southern statesmen from whom it gains so much information, and whose views, to a great extent, it conscientiously accepts. We desire only to confine it within its present limits; we ask that it shall not pollute territory now free; we know the utter folly of appealing to the morality or humanity of a pro-slavery party, where the rights of a black man are involved; but when you insist on taking slaves into a free Territory, and smiting the land with this blighting, withering curse, we plant ourselves on our constitutional rights, and say, _thus far shall you go, and no further_. The learned gentleman from Alabama, [Mr. CURRY,] in alluding to the opinion of the fathers of the Republic, said: "These, however, were but mere speculations."