He is best known for his natural theology exposition of the teleological argument for the existence of God in his work Natural Theology or Evidences of the Existence and Attributes of the Deity, which made use of the watchmaker analogy.
Ia paling dikenal karena eksposisi teologi alam-nya dari argumen teologi mengenai keberadaan Tuhan pada karyanya Natural Theology: or, Evidences of the Existence and Attributes of the Deity, yang membuat penggunaan analogi tukang jam.