Who can ever understand them or reach with certainty to their inner core?

There was another part to the plan, too, which only the original, inner core of people knew about.

Until he reached the inner core, where all things are decided.

She felt as if her inner core was pure ice, the cold coming from inside rather than out.

The inner core, however, is solid because of the enormous pressure.

Very little is known about the composition of Earth's inner core.

Still, it was the only way he might trace a lead to another member of the "inner core."

This solid inner core makes up less than 1 percent of Earth's volume.

The inner core would not disperse for about eight minutes, they said.

But an inner core of caution argued against any such act.