F. L. Wallace, Forget Me Nearly
“ The counselor pretended to frown. "Do you remember how to build it?""I've forgotten," she confessed."So you have," said Borgenese. "And I assure you Putsyn is going to forget too. As a convicted criminal, and he will be, we'll provide him with a false memory that will prevent his prying into the past."That's one machine we don't want until humans are fully and completely civilized. It's been invented a dozen times in the last century, and it always gets lost."He closed his eyes momentarily, and when he opened them, Luise was looking at Luis, who was staring at the floor. ”
