"I'm answered. Will it cure diabetes?"
"No medicine will. No doctor can. They're incurable diseases. Certina will do as much—"
"Is it true that alcohol simply hastens the course of the disease?"
"Authorities differ," said the quack warily. "But as the disease is incurable—"
"Then it's all lies! Lies and murder!"
"You're excited, Boy-ee," said the charlatan with haggard forbearance. "Let me explain for a moment."
"Isn't it pretty late for explanations between you and me?"
"This is the gist of the proprietary trade," said the Doctor, picking his words carefully. "Most diseases cure themselves. Medicine isn't much good. Doctors don't know a great deal. Now, if a patent medicine braces a patient up and gives him courage, it does all that can be done. Then, the advertising inspires confidence in the cure and that's half the battle. There's a lot in Christian Science, and a lot in common between Christian Science and the proprietary business. Both work on the mind and help it to cure the body. But the proprietary trade throws in a few drugs to brace up the system, allay symptoms, and push along the good work. There you have Certina."
Hal shook his head in dogged misery. "It can't cure. You admit it can't cure. And it may kill, in the very cases where it promises to cure. How could you take money made that way?"
A flash of cynicism hardened the handsome old face. "Somebody's going to make a living off the great American sucker. If it wasn't us, it'd be somebody else." He paused, sighed, and in a phrase summed up and crystallized the whole philosophy of the medical quack: "Life's a cut-throat game, anyway."