Dr. Jackson in “Unfinished Business”

You are making a mistake. There is no curse. The black knight is a security feature created by Merlin through the use of science and advanced technology. There is no magic— [the Odyssey beams up SG-1]

[later]

Once and for all: There was no curse. This is a device. There is no magic— [the Korolev beams him up]

Boy, my timing's off today...