“As anyone who's ever taken an Ethiopian bus knows, there is an unwritten rule that the windows must remain firmly closed.”

“A man who embarks on a journey must know when to end it.”

“On a harsh expedition, there's no space for anyone who does not intend to finish.”

“As far as I was concerned, a little danger of head-shrinking is a small price to pay in return for a people who have remained true to an ancient code.”

“The very fact that a Frenchman was prepared, after tow minutes of conversation, to be so friendly towards anyone, especially one who had come from England, made me restless.”

“Any man who has ever led an army, an expedition, or a group of Boy Scouts has sadism in his bones.”

“The first rule of an expedition is that everyone should stick together.”