Falling in Love includes an extensive collection of essays from notable intellectual Grant Allen on a wide variety of subjects. Grant Allen was a science writer, author and novelist, and a successful upholder of the theory of evolution. "He could be described with more 'ists' than anyone else I ever saw. He was an atheist and pacifist and socialist, a botanist and zoologist and optimist, a chemist and physicist, a scientist of scientists, a monist, meliorist and hedonist.