"Snow-plumed South Summit of Everest challenges climbers 25,000 feet (7620 meters) high on Lhotse's slanting face. Bracing themselves with ice axes, steel boot spikes, and a rope fixed to the mountain, the men pause for breath in the rarefied air. Oxygen here is only two-fifths the density at sea level, and climbers must breathe bottled gas."

From "Six to the Summit," October 1963, National Geographic magazine

羽状白雪装饰下的珠穆朗玛峰南侧顶峰使登山者面临挑战，这些人正处于洛子峰倾斜面上2500英尺（7620米）高的地方，支撑着他们的有冰斧、钢靴钉和固定在山体的绳子，他们停顿下来为的是在稀薄的空气里喘口气，但这里的氧气浓度只有海平面的五分之二，所以这些人必须呼吸瓶装气体。

摘自国家地理杂志1963年10月号的“到达顶峰的六个人”一文。