Survival in Auschwitz vs Night
Survival in Auschwitz - "The weak gurgle of the water in the radiators makes us ferocious; we have had nothing to drink for four days." We think the author used this sentence to show us how harsh the conditions of the camp were. It was to inform us on how they weren't cared for and lacked the necessities to live in a healthy manner.
Night - "The dead were abandoned on the train." This sentence shows us how the Germans did not care for the Jews. It didn't matter what happened to them.
Survival in Auschwitz - "The officer says you must be quiet..." The author used this sentence to show how the Jews were commanded and given no freedom.
Night - "Leave me" (Wiesel's Father) The author used this sentence to show how people gave up hope during the Holocaust. They just couldn't survive in those conditions.
Survival in Auschwitz - "Wer kann Deutsch?" (Who speaks German) The author probably used this sentence to show that even though some Jews knew some of the German language most were not fluent enough and probably couldn't have followed orders.
Night - "Now, when we could have a good hot bath and lie down?" This sentence gives off the effect of how nerve racking this experience was. It shows how hard it must have been to be put in a situation were you might leave a loved one.
Survival in Auschwitz - "What comic faces we have without hair!" The author put this in to show how the Germans mistreated the Jews and took away they're own individuality that is expressed through how they look.
Night - "Father" I screamed. (Wiesel) This sentence was probably used to show how emotional and tough it was to think that his father was going to die and leave him all alone.
Theme vs Theme
Survival in Auschwitz - When stripped of everything, people begin to lose all hope.
Night - In dire times, people are faced with hard choices.
Both of the themes have to deal with people being in bad situations.
The theme of "Night" is more towards to how a dire circumstance will change how people act. In the story "Survival in Auschwitz" it was more focused on how when they lose everything they change how they are and even who they are. They are no longer their former self and their lives are changed.