First his remarkable theory of the age of the Earth was inspired by Newton 's world view as presented in the teaching of Colin Maclaurin, and second that one of his main collaborators in his geological research was John Playfair .
Unang-pansin ang kanyang teorya ng edad ng Earth ay inspirasyon sa pamamagitan ng Newton 's mundo tingnan bilang ipinapahayag sa pagtuturo ng Colin Maclaurin, at second na ang isa sa kanyang mga pangunahing tumutulong sa kanyang geological research ay John Playfair.