From memory it is an easy step to what are called "ideas"--not in the Platonic sense, but in that of Locke, Berkeley and Hume, in which they are opposed to "impressions." You may be conscious of a friend either by seeing him or by "thinking" of him; and by "thought" you can be conscious of objects which cannot be seen, such as the human race, or physiology.
We may end our preliminary catalogue with BELIEF, by which I mean that way of being conscious which may be either true or false.
Besides ways of being conscious there are other things that would ordinarily be called "mental," such as desire and pleasure and pain.
There is one element which SEEMS obviously in common among the different ways of being conscious, and that is, that they are all directed to OBJECTS.
"I didn't think that," she replied, conscious of some bewilderment.
It was a mood that took such clear-eyed account of the conditions of human life that he was not disturbed in the least by the gliding presence of a taxicab, and without agitation he perceived that Katharine was conscious of it also, and turned her head in that direction.
He was now conscious of the loss that follows any revelation; he had lost something in speaking to Katharine, for, after all, was the Katharine whom he loved the same as the real Katharine?
She rebelled, as it were, against a certain magnetic element in the artist's nature, which he exercised towards her, possibly without being conscious of it.
But soon, her senses being very acute, she became conscious of an irregular respiration in an obscure corner of the room.
At some uncertain period in the depths of night, and, as it were, through the thin veil of a dream, she was conscious of a footstep mounting the stairs heavily, but not with force and decision.
Will was conscious that he should not have been at Middlemarch but for Dorothea; and yet his position there was threatening to divide him from her with those barriers of habitual sentiment which are more fatal to the persistence of mutual interest than all the distance between Rome and Britain.
"When one sees a perfect woman, one never thinks of her attributes--one is conscious of her presence."