Write what you like; there is no other rule. - O. Henry

"You sold a story last week," said Pettit, "about a gun fight in an Arizona mining town in which the hero drew his Colt's .45 and shot seven bandits as fast as they came in the door. Now, if a six-shooter could — "

"Oh, well," said I, "that's different. Arizona is a long way from New York. I could have a man stabbed with a lariat or chased by a pair of chaparreras if I wanted to, and it wouldn't be noticed until the usual error-sharp from around McAdams Junction isolates the erratum and writes in to the papers about it." (from "The Plutonian Fire")

Between blasts she resorted to Epictetian philosophy in the form of pepsin chewing gum.

"I'll put you wise. You remember the old top-liner in the copy book — "Honesty is the Best Policy"? That's it. I'm working honesty for a graft. I'm the only honest man in the republic. The government knows it; the people know it; the boodlers know it; the foreign investors know it. I make the government keep its faith. If a man is promised a job he gets it. If outside capital buys a concession it gets the goods. I run a monopoly of square dealing here. There's no competition. If Colonel Diogenes were to flash his lantern in this precinct he'd have my address inside of two minutes. There isn't big money in it, but it's a sure thing, and lets a man sleep of nights."