Now what is history? It is the centuries of systematic explorations of the riddle of death, with a view to overcoming death. That's why people discover mathematical infinity and electromagnetic waves, that's why they write symphonies.

Above the comforts of Base Camp, the expedition in fact became an almost Calvinistic undertaking. The ratio of misery to pleasure was greater by an order of magnitude than any mountain I'd been on; I quickly came to understand that climbing Everest was primarily about enduring pain. And in subjecting ourselves to week after week of toil, tedium and suffering, it struck me that most of us were probably seeking above all else, something like a state of grace.

Achieving the summit of a mountain was tangible, immutable, concrete. The incumbent hazards lent the activity a seriousness of purpose that was sorely missing from the rest of my life. I thrilled in the fresh perspective that came from the tipping the ordinary plane of existence on end.

There is nothing glamorous or romantic about war. It's mostly about random pointless death and misery.

In climbing, having confidence in your partners is no small concern. One climber's actions can affect the welfare of the entire team.

The sad end he met in Afghanistan was more accurately a function of his stubborn idealism - his insistence on trying to do the right thing. In which case it wasn't a tragic flaw that brought Tillman down, but a tragic virtue.

Early on a difficult climb, especially a solo climb, you’re hyper-aware of the abyss pulling at your back, constantly feeling its call, its immense hunger. To resist takes tremendous conscious effort, you don’t dare let your guard down for an instant. The void puts you on edge, makes your movements tentative and clumsy. But as the climb continues, you grow accustomed to the exposure, you get used to rubbing shoulders with doom, you come to believe in the reliability of your hands and feet and head. You learn to trust your self-control.