“For the sense of smell, almost more than any other, has the power to recall memories and it's a pity we use it so little.”

“If any one faculty of our nature may be called more wonderful than the rest, I do think it is memory. There seems something more speakingly incomprehensible in the powers, the failures, the inequalities of memory, than in any other of our intelligences. The memory is sometimes so retentive, so serviceable, so obedient; at others, so bewildered and so weak; and at others again, so tyrannic, so beyond control! We are, to be sure, a miracle every way; but our powers of recollecting and of forgetting do seem peculiarly past finding out.”

“In the Ebbinghaus curve, or forgetting curve, R stands for memory retention, s is the relative strength of memory and t is time. The power of a memory can be built through repetition, but it is the memory we are recalling when we speak, not the event. And stories are annealed in the telling, edited by turns each time they are recalled...People remember what they can live with more often than how they lived.”

“What use are memories when memories can do little more than fade?”

“This is no small thing. Indeed, I would venture that, more than any other single quality, it is the relentless moment-by-moment forgetting, this draining of the pool of sense impression almost as quickly as it fills, that gives the experience of consciousness under marijuana its peculiar texture. Its helps account for the sharpening of sensory perceptions, for the aura of profundity in which cannabis bathes the most ordinary insights, and, perhaps most important of all, for the sense that time has slowed or even stopped. For it is only by forgetting that we ever really drop the thread of time and approach the experience of living in the present moment, so elusive in ordinary hours. And the wonder of that experience, perhaps more than any other, seems to be at the very heart of the human desire to change consciousness, whether by means of drugs or any other technique.”

“It's a hard thing to hold a civil conversation after recalling that one party has used a Taser on the other, so both of them finished the walk in silence.”