Humans often use , the most powerful symbol, to take part in cultural —that is, to share what they know, think, and experience.

Humans often use language, the most powerful symbol, to take part in cultural  transmission —that is, to share what they know, think, and experience.

Explanation:

Language is one of the most important aspects of human life and experience. It can be expressed in many forms, orally, written, signally, tactile, etc. and it always uses a set of various symbols in different forms.

Language is one of the main qualities of humans as intelligent species, and its sharing, transmission, and development are in charge of developing civilizations. Thanks to the language, people could finally share and develop their ideas, values, and knowledge. With this, they became more intelligent and progressed, managing to increase the improvement of the society.

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answer; john locke;