One of the means which Anthony Benezet took to promote the cause in question, (and an effectual one it proved, as far as it went,) was to give his scholars a due knowledge and proper impressions concerning it.  Situated as they were likely to be in after-life, in a country where, slavery, was a custom, he thus prepared many, and this annually, for the promotion of his plans.

To enlighten others, and to give them a similar bias, he had recourse to different measures from time to time.  In the almanacs published annually in Philadelphia, he procured articles to be inserted, which he believed would attract the notice of the reader, and make him pause, at least for a while, as to the licitness of, the Slave Trade.  He wrote also, as he saw occasion, in the public papers of the day.  From small things he proceeded to greater.  He collected, at length, further information on the subject, and, winding it up with observations and reflections, he produced several little tracts, which he circulated successively (but generally at his, own expense), as he considered them adapted to the temper and circumstances of the times.

In the course of this his employment, having found some who had approved his tracts, and, to whom, on that account, he wished to write, and sending his tracts to others, to whom he thought it proper to introduce them by letter, he found himself engaged in a correspondence which much engrossed his time, but which proved of great importance in procuring many advocates for his cause.

In the year 1762, when he had obtained a still greater store of information, he published a larger work.  This, however, he entitle A short Account of that part of Africa inhabited by the Negroes In 1767 he published A Caution and Warning to Great Britain and her colonies on the calamitous state of the enslaved Negroes in the British Dominions; and soon after this appeared, An Historical Account of Guinea, its Situation, Produce, and the general Disposition of its Inhabitants:  with an Inquiry into the Rise and Progress of the Slave Trade, its Nature, and Calamitous Effects. This pamphlet contained a clear and distinct development of the subject, from the best authorities.  It contained also, the sentiments of many enlightened upon it; and it became instrumental beyond any other book ever before published, in disseminating a proper knowledge and detestation of this trade.

Anthony Benezet may be considered as one of the most zealous, vigilant, and active advocates which the cause of the oppressed Africans ever had.  He seemed to have been born and to have lived for the promotion of it and therefore he never omitted any the least opportunity of serving it.  If a person called upon him who was going a journey his first thoughts usually were how he could make him an instrument in its favour; he either gave him tracts to distribute or he sent letters by him, or he gave him some commission on the subject; so that he was the means of employing several persons at the same time, in various parts of America; in advancing the work he had undertaken.