In 1756 a volume of Hume's essays entitled Five Dissertations was printed and ready for distribution. The essays included "The Natural History of Religion", "Of the Passions", "Of Tragedy", "Of Suicide", and "Of the Immortality of the Soul". The latter two essays made direct attacks on common religious doctrines by defending a person's moral right to commit suicide and by criticizing the idea of life after death. Early copies were passed around, and someone of influence threatened to prosecute Hume's publisher if the book was distributed as is. The printed copies of Five Dissertations were then physically altered, with a new essay "Of the Standard of Taste" inserted in place of the two removed essays. Hume also took this opportunity to alter two particularly offending paragraphs in the Natural History. The essays were then bound with the new title Four Dissertations and distributed in January, 1757.