Made sense to me we didn't want to use the Station voicecom without knowing if anyone could listen in.

The 'why' usually pushes people to use words without knowing what the meanings are.

He uses metaphors and images, juxtaposed to make you see something really new, without quite knowing how it came about.

And all of us use this ability every day without even knowing it.

People who used magic without knowing what they were doing usually came to a sticky end.

Did that mean he was capable of using power without knowing it?

He used them without knowing what they would call forth.

Alternative operator service companies do not deal directly with the public, so a traveler can use one without knowing it.

To use the phoenix stone without knowing what it would do, then to lead us through the creepers and fire threads.

So, you had a ring made to control animals, and you used it on a horse without knowing its power.