What is the significance of the works of Claudius Galen and how can some of his delusions be explained?

He was the first to study the practical anatomy of man, dissecting animals, but he believed that there are no fundamental differences between man and animals.

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.