"The Religion of Nature Delineated" is a philosophical work written by the English philosopher and theologian William Wollaston. It was first published in 1722. In this book, Wollaston explores his philosophical and ethical views, which are grounded in the idea of a "religion of nature." He argues that there is a rational and natural religion that can be deduced through reason and that is consistent with a moral and virtuous life. Wollaston's work seeks to reconcile reason, morality, and religion, emphasizing the importance of living a virtuous life in accordance with the principles of reason and natural law. "The Religion of Nature Delineated" is considered one of the important works of ethical philosophy and natural theology of the early 18th century. It had an influence on subsequent philosophical and religious thought, particularly with its emphasis on the relationship between reason, ethics, and religion.