Sane leaders generally approved the enlistment of black troops. General Thomas thought so well of the proposition that he wrote John Adams in 1775, expressing his surprise that any prejudice against it should exist.[30] Samuel Hopkins said in 1776 that something should be speedily done with respect to the slaves to prevent their turning against the Americans. He was of the opinion that the way to counteract the tendency of the Negroes to join the British was not to restrain them by force and severity but by public acts to set the slaves free and encourage them to labor and take arms in defense of the American cause.[31] Interested in favor of the Negroes both by "the dictates of humanity and true policy," Hamilton urged that slaves be given their freedom with the swords to secure their fidelity, animate their courage, and influence those remaining in bondage by opening a door to their emancipation.[32] General Greene emphatically urged that blacks be armed, believing that they would make good soldiers.[33] Thinking that the slaves might be put to a much better use than being given as a bounty to induce white men to enlist, James Madison suggested that the slaves be liberated and armed.[34] "It would certainly be consonant to the principles of liberty," said he, "which ought never to be lost sight of in a contest for liberty." John Laurens, of South Carolina, was among the first to see the wisdom of this plan, directed the attention of his coworkers to it, and when authorized by the Continental Congress, proceeded to his native State, wishing that he had the persuasive power of a Demosthenes to make his fellow citizens accept this proposition.[35] In 1779 Laurens said: "I would advance those who are unjustly deprived of the rights of mankind to a state which would be a proper gradation between abject slavery and perfect liberty, and besides I am persuaded that if I could obtain authority for the purpose, I would have a corps of such men trained, uniformly clad, equipped and ready in every respect to act at the opening of the next campaign."