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]
(..) It's all in the book. Hey, you all right? What's the temperature doing? It is a hundred degrees. Eat your trilobite, Sean. We gotta keep our strength up. Attaboy. Hey. Don't we need a center mast? No. We don't need it. The wind that we want is way up there. (..)2008 Journey to the Center of the Earth