The X-Files, Season 9

Scully:
(voiceover) One day, you'll ask me to speak of a truth - of the miracle of your birth. To explain what is unexplained. And if I falter or fail on this day, know there is an answer, my child, a sacred imperishable truth, but one you may never hope to find alone. Chance meeting your perfect other, your perfect opposite - your protector and endangeror. Chance embarking with this other on the greatest of journeys - a search for truths fugitive and imponderable. If one day this chance may befall you, my son, do not fail or falter to seize it. The truths are out there. And if one day you should behold a miracle, as I have in you, you will learn the truth is not found in science, or on some unseen plane, but by looking into your own heart. And in that moment you will be blessed - and stricken. For the truest truths are what hold us together, or keep us painfully, desperately apart.