" But I didn’t go to sleep. The truth is, I’ve got a monkey on my back, a habit worse than marijuana though not as expensive as heroin. I can stiff it out and get to sleep anyway—but it wasn’t helping that I could see light in Star’s tent and a silhouette that was no longer troubled by a dress. The fact is I am a compulsive reader. Thirty-five cents’ worth of Gold Medal Original will put me right to sleep. Or Perry Mason. But I’ll read the ads in an old Paris-Match that has been used to wrap herring before I’ll do without. "

― Robert A. Heinlein , Glory Road