There was the same intellectual force, iron determination, and ruthlessness in these six men.

The old females bent to their work with iron determination.

He had to work incessantly, with an iron determination, just to keep his technique in shape.

Without the iron determination of their chief, what would hold back the villagers?

All it required to bear fruit was iron determination on her part, and that she had.

But he's not kidding about controlling costs, and his iron determination can take its human toll.

There was nothing to her anymore-bird bones held together by old skin and iron determination.

Looks of iron determination spread back through the men.

So now we also must take risks which can only be mastered by iron determination.

"But I could save you," the warrior added with iron determination.