First, unconscious selection appeared, and then methodical selection appeared. Unconscious selection comes down to a selection of unsatisfactory signs. However, there is no conscious goal of breeding work. The main feature of methodological selection is setting a goal that determines the future breed or the desired result. At the same time, breeders identify and preserve the best individuals that meet the standard.
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.