If you are confident in your knowledge enough, based on some…

If you are confident in your knowledge enough, based on some…

If you are confident in your knowledge enough, based on some examples

and evidence can anyone provide me with some guidance in answering these questions? There are no exact references, it can be based on common knowledge however if there is textual evidence to support your answer that would be extremely helpful to include! 
 1- Why might one think that Abraham’s willingness to sacrifice Isaac, as Kierkegaard understands it, exemplifies the “sternly optimistic” acceptance of responsibility that Sartre describes in “Existentialism Is a Humanism”? Why might one think that it does not? 
 4- Explain Derrida’s argument that the conditions of the possibility of “the gift” are also the conditions of its impossibility. Why might one think that this argument undermines Levinas’s phenomenology of personal interactions? Why might one think that it does not? Do not neglect to address Derrida’s remark that we should commit ourselves with “faith and rigor” to inquiry concerning the gift. 
 (8) Describe two important ways in which Derrida can be understood as a Nietzschean.