But both Congress and the administration bristle at the mere idea.

But the mere idea of it was enough to make them more cautious overall.

The mere idea made him feel cold down the back.

The nurse's face showed her horror at the mere idea.

But the other part cried out against the mere idea of her being someone else's wife.

The mere idea made me go rigid with panic again.

The mere idea of human sacrifice did not especially shock him.

All the same, the mere idea made her want to giggle.

The mere idea of this is making the organization crazy.

The logical subject is a mere idea, not a real substance.