Now that the quarterback has recovered from his injury, this week the team will be functioning 'at full strength' again. [=the team will have all its players again]
We are negotiating from a 'position of strength'. [=from a strong position; from a position that gives us an advantage]
He didn't mean to knock you down; he just 'doesn't know his own strength'. [=doesn't realize how strong he really is]
(..) Even if he dies... why would I run? I am khaleesi, and my... my son will be khal after Drogo. This isn't Westeros, where men honor blood. Here they only honor strength. There will be fighting after Drogo dies. Whoever wins that fight will be the new khal. He won't want any rivals. (..)2011 TvShow: Game of Thrones Title: Baelor Season: 1 Episode 9