subject of thought

To call to mind; to recall or bring to recollection, reflection, or consideration; to think; to consider; Ð generally followed by a reflexive pronoun, often with of or that before the subject of thought.

Here, again, we can best afford to go back to the sources from which attention naturally springs, interesting subject of thought, vivid and concrete perceptions, lively and suggestive appeal to the imagination, the sphere of noble thought and emotion, variety and movement in mental effort, a mutual sympathy and harmony between teacher and pupil.

For the process of mind calculated to diminish such an impression, or even to produce a hope of the palliation of the evil, is precisely that exercise of mind which in this singular condition, is lost or suspended; namely, a power of changing the subject of thought, of transferring the attention to other facts and considerations, and of comparing the mental impression with these, and with the actual state of external things.

That it is in this manner the impression arises, and not from any process analogous to the determination of a sound mind, appears, among other circumstances, from the singular manner in which it is often dissipated, namely by the accidental productions of some new impression not calculated in any degree to influence the subject of thought, but simply to give a momentary direction of the mind to some other feeling.

Well, they are hardly of importance enough to form a distinct subject of thought.