"I have a hard time imagining how my memory of the meaning of the word ‘volado’ consists of some strengthened synaptic connections between a few neurons. It is distinctly mind-boggling. Yet far from having removed the mystery from the problem by reducing it to the molecular level, I feel that scientists have opened before me a new and intriguing mystery, the mystery of trying to imagine how connections between nerve cells not only provide the mechanism of memory but are memory. It is every bit as thrilling a mystery as quantum physics, and a great deal more thrilling than Ouija boards and flying saucers."