The enlightenment philosophy of eudaimonia is best summarized by HAPPINESS IS GOOD FOR SOCIETY;
Eudamonism is a principle which teaches that right actions lead to well being of the concerned individual; thus been happy is consistent with being virtuous. It is believed that virtue is needed for someone to be happy and happiness is the only thing that is considered valuable in isolation.
a foil character is a character that possesses traits that the main character does not have and this usually teaches the reader a moral message through juxtaposition
There is more than one conjunction in the sentence, the word but acts as a coordinating conjunction. Also the words not only and but also act as a correlative conjunction.
In 1946,Eleanor Roosevelt served as a chair of the United Nation Commission on Human Rights