SAMANTHA: I know how to kill him. MULDER: How? SAMANTHA: "By piercing the base of the skull. MULDER: That would kill anybody. Mr. X: You wanted to see me? MULDER: How was the opera? Mr. X: Wonderful. I've never slept better. I don't like these hasty public meetings, Agent Mulder. MULDER: I'm sorry. I need your help. Mr. X: It's over. The fat lady is singing. Mr. X: The key to winning the war, Mr. Mulder, is knowing which battles to fight. SCULLY: Thanks for ditching me. SCULLY: Did you find what you were looking for? MULDER: No... no. But I found something I'd thought I'd lost. Faith to keep looking.

Many thanks to Tiny Dancer's X-Files Transcripts and The X-Files Scripts Archive