I forgot to include these sentences.

If you could possibly tell me if they are OK? I'm preparing a dissertion on this as part of my university course.

7) In addition, he told him that only desperate men and very fortunate men went abroad, he said. He was neither desperate nor very fortunate. His was the middle state, and he thought that the middle state was the best.
8) The poor had a difficult life, and the rich were hated by the poor, said he. Only the man in the middle state could live in peace and be happy.
9) Kings often regretted that they had not been in the middle state, and wise men prayed to have neither poverty nor wealth. He said that the greatest misfortunes in life were suffered by the rich and the poor.
10) He said that moderation, quietness and good health were the conditions of the middle state. He begged him not to abandon this happy condition.
11) He told him that he had begged his brother not to become a soldier for the same reasons. However, his brother had run away to the army, and now he was dead. He said that God would not bless him if he went to sea, and that he would be sorry if he ignored his father’s advice.
12) During the last part of his discourse the tears ran down his face, especially when he spoke of his son. When he said that Robinson would regret his choice, he was so moved that he could say no more. He was sincerely affected by his words and decided not to think of going abroad any more.

7 -- delete "he said" -- it's repetitive.

Everything else is fine.