Robert E. Peary,
Secrets of Polar Travel
(1917)
“ As to the quality of the personnel of a polar expedition, my experience has proved over and over again the accuracy of my theory that it should be made up wholly of young men, of first-class physique, perfect health, education, and attainment. Such men, interested in their work and the success of the expedition, with resources within themselves and plans for the future, are able to resist in a large measure the depressing effects of the long polar night, and in field-work their enthusiasm more than makes up for lack of experience or toughened endurance. ”
