"SISL was never censored by anyone in any fashion. The first draft was nearly twice as long as the published version. I cut it myself to bring it down to a commercial length. But I did not leave out anything of any importance; I simply trimmed all possible excess verbiage. Perhaps you have noticed that it reads 'fast' despite its length; that is why. … The original, longest version of SISL … is really not worth your trouble, as it is the same story throughout — simply not as well told. With it is the brushpenned version which shows exactly what was cut out — nothing worth reading, that is. I learned to write for pulp magazines, in which one was paid by the yard rather than by the package; it was not until I started writing for the Saturday Evening Post that I learned the virtue of brevity."