The Strategy of Eight Corners tend to view the centers as mobile. The iron cage of eight corners is regarded as the rest frame in the previous sections. When all edges have been settled, the centers may be away from their face.Most cubists treats center movements as pretty patterns without giving them as serious thought.
1. I'm exhausted. 2. I'm dead tired. 3. I'm pooped. 4. I'm spent. 5. I'm beat. 6. I'm running on fumes. / I'm running on empty. 7. I can hardly keep my eyes open. 8. I'm off to bed. 9. I'm gonna hit the sack. (hit the sack = go to bed) 10. It's bedtime for me.