He was a nuclear physicist who was active at least as far back as the 1940s:
“Soddy noted as far back as 1949 that this simple law of decay, which is the same for all radioactive elements and is of a probabilistic nature, is basically inexplicable. 'It can be imagined in the form of the spirit of destruction, who randomly disintegrates a certain amount of existing atoms at each moment of time, without taking care of the selection of those of them which are close to disintegration.’”
The italicized portion is, I believe, taken from a work translated into Russian and then back again into English. Can anyone verify if it is accurate?
Frederick Soddy wrote a book called “The Story of Atomic Energy” in 1949, so if you really want to track down the original quote, I would suggest tracking down a copy of that volume.
Frederick Soddy was the guy whose book gave H.G. Wells the idea for The Atomic Bomb, which he used in his novel The World Set Free. This, inn turn, influenced Leo Szilard in his work on chain reactions, which ultimately lead to the real-world atomic bomb. Szilard has stated that it was Wells’ book that showed him the political implications of the real-life atomic bomb.