Answer:Nature and Nurture.
 Explanation:
 Nature and nurture is the part of developmental psychology. Nature is defined as the genetic inherited characteristics and traits for mind's development that are gained from parents and grandparents .
Nurture is described as the traits that are gained from the environment that creates a impact on development of mind. 
As per the mentioned situation, difference of opinion in Dr Smith's and Dr. Jones belief's is based on nature and nurture concept. Dr. Smith's thought depicts aggressive behavior of a person is due to the nurturing traits. 
Whereas Dr. Jones belief display that aggressive nature is gained from the genetic factors by birth that is due to nature.
 
        
             
        
        
        
In the following, you will find the excerpts from "Elizabeth Bishop's" The fish in that very situation:
"I caught a tremendous fish, and held him beside the boat, half out of water, with my hook, fast in a corner of his mouth. He didn’t fight. He hadn’t fought at all. He hung a grunting weight, battered and venerable and homely. Here and there his brown skin hung in strips like ancient wallpaper,"
 
        
                    
             
        
        
        
What do you mean? Could you be more specific?
        
             
        
        
        
Cyprus President Nicos Anastasiades and Turkish-Cypriot leader Mustafa Akinci are holding talks to find a compromise to reunify the island, which has been divided for the past 40 years. If the discussion progresses well, the leaders will be joined by those from Greece, Turkey, and the U.K. — the three parties that guarantee Cypriot independence and security. This would mark the first direct talks since 1974.