Kevin J. Anderson said this quote
“ Scully,' [Mulder] said, his voice quiet and serious, 'with the... unorthodox explanations I often find when studying the evidence, I know you're always skeptical-but every time you're at least fair to me. You respect my opinion, even when you don't agree with it.' He looked at his hands. 'I don't know if I've ever told you, but I really appreciate that.'She looked at him and smiled. 'You've told me, Mulder. Maybe not in words... but you've told me. ”