Complex sentence: In his lifetime, Woolman did not succeed in eradicating slavery within the Society of Friends in colonial America; however, his personal efforts helped change Quaker viewpoints during the period of the Great Awakening.
Split into simpler sentences: In his lifetime, Woolman did not succeed in eradicating slavery even within the Society of Friends in colonial America. However, his personal efforts helped change Quaker viewpoints during the period of the Great Awakening.