"Men of science, as a class, do not war on the truths, the goodness and the piety that are taught as religion, only on the errors, the evil, the impiety which bear its name. Science is the natural ally of religion. Shall we try and separate what God has joined? We injure both by the attempt. The philosophers of this age have a profound love of truth, and show great industry and boldness in search thereof. In the name of truth they pluck down the strongholds of error--venerable and old. "All the attacks made on religion itself by men of science, from Celsus to Feuerbach, have not done so much to bring religion into contempt as a single persecution for witchcraft, or a Bartholomew massacre made in the name of God." Parker had human sympathies strong and deep, and could never have been indifferent to the pains and misery of his fellow creatures; yet these sympathies owed their persistency, their endurance, and their indomitable sweetness, to the spiritual faith which he professed. He had a passionate head-strong nature; he knew the charm of pleasant looks, congenial companions, elegant and luxurious circumstances. His love of leisure was keen; it was the desire of his life to enjoy the scholar's privilege of uninterrupted hours, in the delicious seclusion of the library. With a different philosophy he would have been a very different man. The creed he held made self-indulgence impossible. "I have always taught," he said--in a sermon before quoted, the last he preached in the Melodeon--"that the religious faculty is the natural ruler in all the commonwealth of man; the importance of religion, and its commanding power in every relation of life. This is what I have continually preached, and some of you will remember that the first sermon I addressed to you was on this theme:--The absolute necessity of religion for safely conducting the life of the individual, and the life of the State. You knew very well I did not begin too soon; yet I did not then foresee that it would soon be denied in America, in Boston, that there was any law higher than an Act of Congress." The allusion is to the Fugitive Slave Bill then recently enacted, which brought to a close issue the controversy between the Abolitionists and the Government, and imposed on Mr. Parker and the rest who felt as he did, duties of watchfulness and self-denial, that for years put to flight all thoughts of personal ease. He continues: