" It has been explained before that in ordinary conditions of life we do not remember ourselves; we do not remember,- that is, we do not feel ourselves, are not aware of ourselves at the moment of perception, of an emotion, of a thought or of an action. If a man understands this and tries to remember himself, every impression he receives while remembering himself will, so to speak, be doubled.
In an ordinary state I look at a street. But I remember myself, I do not simply look at the street; I feel that I am looking, as though saying to myself: "I am looking". Instead of one impression of the street, there are two impressions.
One of the street and one of myself looking at it."