She began to understand. “I’m quite sure you have abolished marriage.”

“As a matter of fact, yes, this morning.”

“And now you don’t know what to do about the children.”

“Precisely. I....”

“Perfectly simple.” Clarissa was brisk: this, apparently, was a problem she had already solved. “The next step is controlled breeding. Only those whose blood lines seem promising should be allowed to procreate. Now that oral contraceptives are so popular no one will make babies by accident ... in fact, it should be a serious crime if someone does.”

“Quite neat, but I wonder whether, psychologically, it’s simple. There’s the whole business of instinct, of the natural desire of a woman to want her own child after bearing it.”

“All habit ... not innate. Children have been subordinate woman’s ace in the hole for generations. They have had to develop certain traits which, in other circumstances, they would not have entertained. Rats, whom we closely resemble, though they suckle their young will, in moments of mild hunger or even exasperation, think nothing of eating an entire litter. You can condition human beings to accept any state of affairs as being perfectly natural.”

“I don’t doubt that. But how to break the habits of several thousand years.”

“I suppose there are ways. Look what Cave is doing. Of course making death popular is not so difficult since, finally, people want it to be nice: they do the real work or, rather, their terror does. In place of superstition, which they’ve nearly outgrown, he offers them madness.”

“Now really, Clarissa....”