' He was terrified, for
he had never expected to find empty space underneath the world.
But his wife was filled with curiosity.'
Okay so...
Morbid means to be appealed to death,
Retrospection means a look into the past.
We can infer she avoids Morbid Retrospection due to a rough past that could have caused PTSD (Post Traumatic Stress Disorder). Someone could have died in her past that was close to her.
This can be an example of nostalgia. (Nostalgia is a sentimental longing or wistful affection for the past, typically for a period or place with happy personal associations according to Oxford Dictionaries)
John Locked was all for the people trying to make a good democracy with equality trying to give every one rights while on the other hand Thomas Hobbes hated People and thought they selfish and did not deserve any rights