Complex sentence: He also said that since citizens were born of the Republic, they should love it above anything else, reasoning that eventually the love for the fatherland would become a passion in everyone and this is how the people of the Republic would be united.
Split into simpler sentences: He also said that since citizens were born of the Republic, they should love it above anything else. He reasoned that eventually the love for the fatherland would become a passion in everyone and this is how the people of the Republic would be united.