At the beginning of the show, SG-1 is bumbling around, getting into trouble they don't even understand. They are constantly encountering foes that are far more powerful, both in terms of number and technology. They are outgunned and outmatched.
But they keep at it, even when it seems hopeless. They learn from their mistakes. Adapt. Find solutions to problems. Sometimes they lose ground, but they never stop moving forward.
/4