To the true friends of freedom throughout the world, it is a pleasing thought, and one which, by being communicated to others, is well calculated to universalize the principles of liberty, that the great heroes, statesmen, and sages, of all ages and nations, ancient and modern, who have ever had occasion to speak of the institution of human slavery, have entered their most unequivocal and positive protests against it. To say that they disapproved of the system would not be sufficiently expressive of the utter detestation with which they uniformly regarded it. That they abhorred it as the vilest invention that the Evil-One has ever assisted bad men to concoct, is quite evident from the very tone and construction of their language. Having, with much pleasure and profit, heard the testimony of America, through her representative men, we will now hear that of other nations, through their representative men--doubting not that we shall be more than remunerated for our time and trouble. We will first listen to THE VOICE OF ENGLAND. In the case of James Somerset, a negro who had been kidnapped in Africa, transported to Virginia, there sold into slavery, thence carried to England, as a waiting-boy, and there induced to institute proceedings against his master for the recovery of his freedom, MANSFIELD says:-- "The state of slavery is of such a nature that it is incapable of being introduced on any reasons, moral or political, but only by positive law, which preserves its force long after the reasons, occasion, and time itself whence it was created, is erased from the memory. It is so odious that nothing can be sufficient to support it but positive law. Whatever inconveniences, therefore, may follow from the decision, I cannot say this case is allowed or approved by the law of England, and therefore the black must be discharged." LOCKE says:-- "Slavery is so vile, so miserable a state of man, and so directly opposite to the generous temper and courage of our nation, that it is hard to be convinced that an Englishman, much less a gentleman, should plead for it." Again, he says:-- "Though the earth, and all inferior creatures be common to all men, yet every man has a property in his own person; this nobody has any right to but himself." PITT says:-- "It is injustice to permit slavery to remain for a single hour." FOX says:-- "With regard to a regulation of slavery, my detestation of its existence induces me to know no such thing as a regulation of robbery, and a restriction of murder. Personal freedom is a right of which he who deprives a fellow-creature is criminal in so depriving him, and he who withholds is no less criminal in withholding." SHAKSPEARE says:-- "A man is master of his liberty." Again, he says:--