It is a painful thought to me, Frank, that son of mine should feel the smallest attraction to low company.

But the painful thought went though my mind that there are thousands more whom no one knows about.

"I don't mean to bring back painful thoughts for you by dredging up the past."

The Archbishop said the action was taken "after much painful thought."

I have been very dependent on you and it is a painful thought.

Margaret seemed lost for a time in painful thought.

Today his painful thoughts are colored by a new development.

A painful thought struck him, one which he could hardly voice.

Even four to seven years after the loss, many still had painful thoughts and felt distressed.

It was a painful thought and he had, with some difficulty, trained himself to keep his mind away from that topic.