At long last he was unencumbered, emancipated from the stifling world of his parents and peers, a world of abstraction and security and material excess, a world in which he felt grievously cut off from the raw throb of existence.

It was titillating to brush up against the enigma of mortality, to steal a glimpse across its forbidden frontier. Climbing was a magnificient activity, I firmly believed, not in spite of the inherent perils, but precisely because of them.

Hours slide by like minutes. The accumulated clutter of day-to-day existence — the lapses of conscience, the unpaid bills, the bungled opportunities, the dust under the couch, the inescapable prison of your genes — all of it is temporarily forgotten, crowded from your thoughts by an overpowering clarity of purpose and by the seriousness of the task at hand.

He read a lot. He used a lot of big words. I think maybe part of what got him into trouble was that he did too much thinking. Sometimes he tried too hard to make sense of the world, to figure out why people were bad to each other so often. A couple of times I tried to tell him it was a mistake to get too deep into that kind of stuff, but Alex got stuck on things. He always had to know the absolute right answer before he could go on to the next thing.

As a means of motivating people to be cruel or inhumane-as a means of inciting evil, to borrow the vocabulary of the devout-there may be no more potent force than religion.

What if I were smiling and running into your arms? Would you see then what I see now?

The endless, agonizing recycling of what might have been, soon followed by a litany of rationalizations and self-deceptions as you struggle to reconcile the void between the person you want to be and the person you fear you are.