you have not tried to understand. Thus persecution begins. If you have a large element of the savage in you, your opposition will take the form of actual physical violence and scurrilous abuse; if you are moderately humane and intelligent, you will merely scorn and deride the heretic. Your blood seethes when you read of the persecution of martyrs. Take heed of yourself that you do not evince the malevolent spirit that impels men to denounce others unheard, at the first suggestion of heterodox opinion. Priestley, a Unitarian minister, of Birmingham, experimented in chemistry, and discovered oxygen, alone and entirely unassisted, in a laboratory fitted up at his own expense. The world owes much to this industrious man of science. But the human nature that killed Christ and Bruno, hated Priestley because he tried to convey new truths. A mob of fanatical Respectables burned down his house, and destroyed all his books, notes, and apparatus, and drove him from his native land. Home, the author of the tragedy of "Douglas," was persecuted and turned out of the ministry by Scotch Respectables for writing a play to amuse and instruct his fellow men; and Dr. Alexander Carlyle was threatened with a prosecution for standing by Home, his friend. Religious Respectability persecuted the devout Hannah More for instructing the children of the poor. Moneyed Respectability hanged John Brown, mobbed Theodore Parker, and threatened to shoot Ernestine Rose for endeavouring to free negro slaves. Shelley, one of the humanest souls who ever lived, was driven from Eton by respectable young cads, expelled from Oxford by Respectability, and banished to another country. Byron, who taught men, by brave precept and example to love liberty, was reviled, slandered, and forced to live abroad. Walt Whitman, for showing men the beauty and purity of the reproductive function, degraded and assailed by Respectability, was "greeted with howls of execration." Respectability has cursed Ibsen, Zola, and Björnson, three mighty forces for righteousness in Europe. Charles Bradlaugh, who devoted his life to the service of man, was bitterly assailed and vilely aspersed by his contemporary Respectables. Respectable human nature kicks everyone who sets himself to benefit humanity. The history of this moral pest and mental blight abounds with instances of its venomous effect upon men's hearts and minds.