Stages of social development according to D. Bell?

The first stage is traditional society (agriculture is the basis of the economy)
The second stage is an industrial society (the basis is mass industrial production)
The third stage is post-industrial society (rapid development of science and technology. Society of the future).

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.