When she came back she thought he looked exhausted by the sheer effort of sitting.

He was holding his own exhaustion off by sheer effort of will.

I pushed the darkness back through a sheer effort of will and lifted my head to look.

He did it, by a sheer effort of will.

It was a sheer physical effort to get out of bed.

The sheer effort it requires often shows in the human face.

I tried to unbelieve that it had happened, to force time back by sheer effort of will.

Through sheer effort of will she forced her lips to move.

Still, the sheer effort involved in playing these works was something to behold.

It was as if he must die from the sheer effort of it.