While he was fighting, the thought had never entered his mind.

I'm not like these people that a serious thought don't ever enter their heads.

For the first time a thought entered into my head, that perhaps he had made it all up.

The thought he would ever go away never entered my mind.

Since our marriage the thought of another woman has never entered into my head.

Even the thought of danger could not enter his mind for a while.

I could only expect that after this morning, the thought had entered your mind.

Now while I was coming home, thoughts entered my heart.

No thought entered his mind because there was nothing to worry about.

Once that thought enters your head, you cannot turn away from it.