Edward T. Hall said this quote

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.

~ Edward T. Hall

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.

~ Edward T. Hall

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.

~ Edward T. Hall

People carry around with them internalization's fixed-feature space learned early in life. Man is like other members of the animal kingdom , first, last and always a prisoner of his biological organism. No matter how hard he tries, it is impossible for him to the best himself of his own culture, where it has penetrated to the roots of his nervous system and determines how he perceives the world.

~ Edward T. Hall