 The younger man consulted with Newton, who encouraged Wilberforce to stay in Parliament and "serve God where he was".In 1792, Newton was presented with the degree of Doctor of Divinity by the College of New Jersey (now Princeton University).In 1788, 34 years after he had retired from the slave trade, Newton broke a long silence on the subject with the publication of a forceful pamphlet "Thoughts Upon the Slave Trade", in which he described the horrific conditions of the slave ships during the Middle Passage.