We have looked at factors that increase animosity between the rich and poor and situations in which they can live harmoniously.
In addition, how food affects us unquestionably has a lot to do with genetic factors, and because everyone has a different genetic makeup, different foods affect each of us differently.
The remaining history of the dynasty is a wretched story of the struggle of different claimants, while the different factors of the kingdom, the cities and barbarian races, more and more assert their independence.
Some people are of opinion that the factors to be taken account of in economic investigation are so numerous that progress on these lines is impossible.
Specially noteworthy in the Lezioni are the sections on human wants as the foundation of economical theory, on labour as the source of wealth, on personal services as economic factors, and on the united working of the great industrial functions.