Oral and written speech. Both types of speech allow a person to share information with other people, pass on their knowledge to future generations, which makes the continuous development of science, technology, culture. Speech consists of words, each of which denotes some concept: an object, an action or a feature of an object. With the help of words, people can express very complex sensations, describe any processes.
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.