“It is characteristic of all extension systems to be treated as distinct and separate from the user and to take on an identity of their own. Religions, philosophies, literature, and art illustrate this. After a time, the extended system accretes to itself a past and a history as well as a body of knowledge and skills that can be learned. Such systems can be studied and appreciated as entities in themselves.”

“We should never denigrate any other culture but rather help people to understand the relationship between their own culture and the dominant culture. When you understand another culture or language, it does not mean that you have to lose your own culture.”

“The study of man is the study of his extensions.”

“From now on, how one arrives at a definition of the relationship of man's basic nature to his culturally conditioned control systems (extensions) is of crucial importance. For in our shrinking globe man can ill afford cultural illiteracy.”

“It is characteristic of all extension systems to be treated as distinct and separate from the user and to take on an identity of their own. Religions, philosophies, literature, and art illustrate this. After a time, the extended system accretes to itself a past and a history as well as a body of knowledge and skills that can be learned. Such systems can be studied and appreciated as entities in themselves.”

“One of the most effective ways to learn about oneself is by taking seriously the cultures of others. It forces you to pay attention to those details of life which differentiate them from you.”