“The key question is, no matter how much you absorb of another person, can you have absorbed so much of them that when that primary brain perishes, you can feel that that person did not totally perish from the earth... because they live on in a 'second neural home'?... In the wake of a human being's death, what survives is a set of afterglows, some brighter and some dimmer, in the collective brains of those who were dearest to them... Though the primary brain has been eclipsed, there is, in those who remain... a collective corona that still glows.”

“Nobody ever feels just one way about another person, Margo. We're so much more complicated than that. I can see a million things you want from me, just like the million things I want from you. Some of them are wonderful. Some are awful. Some contradict each other, and some don't make sense at all. But none of those things matter, not really. What matters is what you do about them.”

“Memories are like that. They live between synapses and between the people who hold them. Memories, even epic ones, are perishable from their very formation even in people who don't soak their brains in mood-altering chemicals. There is only so much space on any one person's hard drive, and old memories are prone to replacement by newer ones.”

“When you fall in Love with someone, you can never imagine being without them. But when you fall in Love a second time, you can never imagine you were with them in the first place. Though Love continues on in the heart, the brain often forgets.”

“To those who have neither public nor private affections, the excitements of life are much curtailed, and in any case dwindle in value as the time approaches when all selfish interests must be terminated by death: while those who leave after them objects of personal affection, and especially those who have also cultivated a fellow-feeling with the collective interests of mankind, retain as lively an interest in life on the eve of death as in the vigour of youth and health.”

“Who knows what I want to do? Who knows what anyone wants to do? How can you be sure about something like that? Isn't it all a question of brain chemistry, signals going back and forth, electrical energy in the cortex? How do you know whether something is really what you want to do or just some kind of nerve impulse in the brain? Some minor little activity takes place somewhere in this unimportant place in one of the brain hemispheres and suddenly I want to go to Montana or I don't want to go to Montana. How do I know I really want to go and it isn't just some neurons firing or something? Maybe it's just an accidental flash in the medulla and suddenly there I am in Montana and I find out I really didn't want to go there in the first place. I can't control what happens in my brain, so how can I be sure what I want to do ten seconds from now, much less Montana next summer? It's all this activity in the brain and you don't know what's you as a person and what's some neuron that just happens to fire or just happens to misfire.”