At the north or the south, at the east or the west,--wherever Providence may call me,--my voice shall be heard in behalf of the perishing slave, and against the claims of his oppressor. Mine is the frank avowal of the excellent WILBERFORCE:--I can admit of no compromise when the commands of equity and philanthropy are so imperious. I wash my hands of the blood that may be spilled. I protest against the system, as the most flagrant violation of every principle of justice and humanity. I NEVER WILL DESERT THE CAUSE. In my task it is impossible to tire: it fills my mind with complacency and peace. At night I lie down with composure, and rise to it in the morning with alacrity. I NEVER WILL DESIST FROM THIS BLESSED WORK. Now that the concentrated execration of the civilized world is poured upon those who engage in the foreign slave trade, how mild and inefficient, comparatively speaking, seem to have been the rebukes of Pitt, and Fox, and Wilberforce, and Clarkson! Yet these rebukes were once deemed fanatical and outrageous by good men--yea, like flames of fire, threatening a universal conflagration! So the denunciations which I am now hurling against slavery and its abettors,--which seem to many so violent and unmerited,--will be considered moderate, pertinent and just, when this murderous, soul-destroying system shall have been overthrown. Fanaticism has been the crime alleged against reformers in all ages. 'These,' it was said of the apostles, 'that have turned the world upside down, come hither also.' Luther was a madman in his day: what is he now in the estimation of the friends of civil and religious liberty? One of 'Those starry lights of virtue, that diffuse Through the dark depths of time their vivid flame.' That base and desperate men should thus stigmatize those who endure the cross as good soldiers, and walk as pilgrims and strangers here, is not wonderful; but that the professed followers of Jesus Christ should join in this hue-and-cry is lamentable. Singular enough, I have been almost as cruelly aspersed by ministers of the gospel and church members, as by any other class of men. Unacquainted with me, and ignorant of my sentiments, they have readily believed the accusations of my enemies. The introduction of my name into conversation has elicited from them contemptuous sneers or strong denunciations. I have a right to complain of this treatment, and I do strongly protest against it as unchristian, hurtful and ungenerous. To prejudge and condemn an individual, on vague and apocryphal rumors, without listening to his defence or examining evidence, is tyranny. Perhaps I am in error--perhaps I deserve unqualified condemnation; but I am at least entitled to a privilege which is granted to the vilest criminals, namely, the privilege of a fair trial. I ask nothing more. To accuse me of heresy, madness and sedition, is one thing; to substantiate the accusation, another.