My main character (Valdis) would typically say this:
''Darkness flows trough my mind, but it doesn't flow trough my heart.'' (She is a bit depressed but kind and generous.)
''I'm not proud of what I did, but I couldn't let Grelod force the children to grow suffered and lonely...like she did to me.'' (Valdis has spend three years in the orphanage when her parents got murdered.)
''I am not licking Ulfric his boots, but the man speaks words the people of Skyrim need in these times.''
''The Thalmor seek to destroy our faith in Talos...looks like they are a little bit jealous.''
''Why am I loved only when I'm gone?'' (A Nightwish reference. Yep, but it fits her.)
I will come up with more quotes later.

I was not sure if this belonged in the general discussion or the spoilers thread. If I was wrong, forgive me.