His mind was almost completely engrossed with inward thoughts.

Inner speech is the opposite; it is the conversion of speech into inward thought.

Believe, I seem to tremble at my inward thought; My heart is full of wonder.

Do you, or do you not, spit out your most inward thoughts ten times a day like poison?

After a moment, he added in a near whisper, as if completing some inward thought: "That will be important for Gregory Efimovich."

'And never once mentioned a sister all these years,' was her inward thought.

They were bright as ever, but veiled to my seeing the inward thought behind them as are the eyes of a caged lion.

The expression on their faces showed the pain of their inward thought: in twenty years, none of them was likely to be alive.

Their inward thoughts, they believe, are conveyed directly to the deity.

Some inward thought had brought a grin to the mayor's face.