The activity of Quakers in the abolition of slavery both in England and America, especially the life-long work of John Woolman in the colonies, is well known. Here too, the first "concerned" Friends attempted to bring to an end the practice of holding slaves within the Society itself. When they had succeeded in eliminating it from their own ranks, they could, with a clear conscience, suggest that their neighbors follow their example. When the time came, Quakers were willing to take part in political action to eradicate the evil. The compensated emancipation of the slaves in the British Empire in 1833 proved that the reform could be accomplished without the violent repercussions which followed in the United States.[123]

Horace G. Alexander has pointed out that the person who voluntarily surrenders privilege, as the American Quakers did in giving up their slaves, not only serves as a witness to the falsehood of privilege, but can never rest until reform is achieved.

"The very fact," he says, "that he feels a loyalty to the oppressors as well as to the oppressed means that he can never rest until the oppressors have been converted. It is not their destruction that he wants, but a change in their hearts."[124]

Such an attitude is based upon a faith in the perfectibility of man and the possibility of the regeneration of society. It leads from a desire to live one's own life according to high principles to a desire to establish similar principles in human institutions. It rejects the thesis of Reinhold Niebuhr that social groups can never live according to the same moral codes as individuals, and also the belief of such groups as the Mennonites that, since the "world" is necessarily evil, the precepts of high religion apply only to those who have accepted the Christian way of life. Instead, the conviction of those who hold this ideal that it is social as well as individual in its application leads them into the pathways of social reform, and even into political action.