This is the publication of the influential Rede Lecture by British scientist and novelist C. P. Snow. Its thesis was that "the intellectual life of the whole of western society" was split into the titular two cultures - namely the sciences and the humanities - and that this was a major hindrance to solving the world's problems. Published in book form, Snow's lecture was widely read and discussed on both sides of the Atlantic, leading him to write a follow-up, "The Two Cultures: And a Second Look: An Expanded Version of The Two Cultures and the Scientific Revolution."