You will study bioscience control, that ought to be useful—it will teach you the folly of thinking you can go against your genetic inheritance, for o… - Michael Swanwick

Let me explain to you," the Horned One said, "the nature of history."
"What?"
"The first thing you need to know is that history happens almost exclusively in the dark...Here is your second lesson: History is that which cannot be prevented...Here is your third and final lesson: History is simply life with all the bits any sane person might care to experience left out.

It pained him to think how naive he had once been.

It was none of your foul science. I am an occultist."
"A distinction in terminology only. Our means may differ, but we employ identical techniques. First, render the brain open to suggestion. We use magnetic resonance, while you employ drugs, ritual, sex, terror, or some combination thereof. Then, when the brain is susceptible, imprint it with new behavior patterns. We use holotherapeutic viruses as the message carriers; you eat a rat. Finally, reinforce the new pattern in your daily life. Our methods are probably identical there. The skill is extremely old; people were being reprogrammed long before machines.