Then he was an old-fashioned enemy of war, especially of civil war. He was a sincere lover of peace, and a believer in the arts of peace, in industry, education, the diffusion of intelligence, the weaving of the ties of fraternity; and though he acknowledged the heroic mission of strife, he recoiled instinctively from it. War, in his estimation, was an inevitable necessity in the order of the world, but it was an awful element in the "world problem"; "a fearful scourge," a condition to be outgrown along with vice, passion, injustice, selfishness, ambition, a sign that is destined to disappear as intelligence and Christianity come in. It must be submitted to as an ordination of Providence, but it should never be precipitated by men, least of all should it be brought on hastily, by unreasonableness, malignity, or hate. The evils of war were precisely such as appealed most directly to his imagination; they were so personal, they were so domestic, they were so pitiable, they were so full of tears. He shrank from violence, from rage, from party ambition, from curses and cries. He loved his countrymen, and, so long as any reason remained, he could not bear to think of fighting. So long as any oil was left in the can, the troubled waters were not to be abandoned by the peace-makers. It was much for him to have patience with those who used angry words, even in a cause of righteousness. He, for his part, could not scold or overstate, or do anything in a harsh temper. Dr. Dewey believed in colonization; not necessarily in Africa, but in a separation between the white and black races, in the civilization of the negro. In the tenth lecture of the course on "The Problem of Human Destiny" (1864), he takes occasion to welcome "the great hope" that thus was opened "for purging our American soil from the stain of slavery. Many of us have long been asking how this is to be done. Look at Africa, surrounded by a wall of darkness, and filled with cruelty and blood, with no civilizing influence in herself, as the story of ages has proved; what now do we see? Britain sends to her borders the man-stealer, to tear her children from her bosom and transport them to the American colonies. It was a deed of unmingled atrocity, compared with which capture in war was generous and honorable; the African King of Dahomey grows white by the side of the Saxon slave-trader. But what follows? The African people in this country improve, and are now far advanced beyond their kindred at home. And now they begin to return; they are building a state on their native borders which promises to stop the slave trade with Africa and to spread light and civilization through her dark solitudes." At the close of his discourse on the slavery question, he said: