One of the most influential atheist texts of the Enlightenment, in which Hume sets up a Socratic dialogue between characters representing different points of view (argument from design, argument from fideism, skepticism) and gently dismisses the prevailing views of religion at the time. This book predates the Darwinian revolution in scientific understanding, but I read it as suggesting that the deism of figures like Newton and Locke was no longer a solution to the question of God. The format of the book is irritating, but there is insight and wit there too.