Quote 7
[Raskolnikov:] "I've just been kissed by someone who, if I had killed anyone, would just the same...in fact I saw someone else there...with a flame-coloured feather." (2.7.135)
The kiss was from Polenka, Sonia's sister. This is not a Svidrigaïlov moment, mind you. Raskolnikov expresses deep concern for Polenka many times. The passage also comments on the big impression Sonia makes on him the first time he sees her.
Quote 8
[Raskolnikov and Sonia] were renewed by love; the heart of each held infinite sources of life for the heart of the other. (Epilogue.2.23)
Wow. Isn't that a contrast to the rest of the novel? This is what we all want. In some ways, love between Raskolnikov and Sonia seems impossible, even though their attraction is undeniable. This ending makes love seem possible for almost anybody.
Quote 9
"But, perhaps, there is no God at all," Raskolnikov answered with a sort of malignance, laughed and looked at her. (4.4.93)
This is in response to Sonia's insistence that "God" won't let Polenka become a prostitute. Believing or not believing in God are versions of individual reality. Raskolnikov sometimes believes in God and sometimes doesn't.