How are the external and internal culture of a person connected?

A person can be designated cultural only when he possesses both external and internal culture. Outward, that is, well and neatly dressed, polite, observes etiquette. Internal, this is when there is no emptiness behind this beautiful cover, but there are moral principles, a core, kindness, nobility, respect, there are interests, knowledge. I try to develop both externally and internally. For the development of internal culture, I read literature, classical works that are more related to elite culture, and not mass culture. I travel, communicate with other people, go to exhibitions.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.