"In my studies of these several racial stocks I find that it is not accident but accumulated wisdom regarding food that lies behind their physical excellence and freedom from our modern degenerative processes, and, further, that on various sides of our world the primitive people know many of the things that are essential for life — things that our modern civilizations apparently do not know. These are the fundamental truths of life that have put them in harmony with Nature through obeying her nutritional laws. Whence this wisdom? Was there in the distant past a world civilization that was better attuned to Nature’s laws and have these remnants retained that knowledge? If this is not the explanation, it must be that these various primitive racials stocks have been able through a superior skill in interpreting cause and effect, to determine for themselves what foods in their environment are best for producing human bodies with a maximum of physical fitness and resistance to degeneration."
- Weston Price, Nutrition and Physical Degeneration