"I have entered into these particulars with respect to the Essay on Man, partly with a view of illustrating the distinction already hinted at between the two different forms in which the system of optimism has been proposed, and partly to have an opportunity of directing the attention of my readers to the noblest specimen of philosophical poetry which our language affords; and which, with the exception of a very few passages, contains a valuable summary of all that human reason has been able hitherto to advance in justification of the moral government of God."