I study people in their most ordinary occupations, to see if I can succeed in discovering in others what I feel that I myself lack in everything that I do: the certainty that they understand what they are doing.

At first sight it does indeed seem as though many of them had this certainty, from the way in which they look at and greet one another, hurrying to and fro in pursuit of their business or their pleasure. But afterwards, if I stop and gaze for a moment in their eyes with my own intent and silent eyes, at once they begin to take offence. Some of them, in fact, are so disturbed and perplexed that I have only to keep on gazing at them for a little longer, for them to insult or assault me.

No, go your ways in peace. This is enough for me: to know, gentlemen, that there is nothing clear or certain to you either, not even the little that is determined for you from time to time by the absolutely familiar conditions in which you are living. There is a something more in everything. You do not wish or do not know how to see it. But the moment this something more gleams in the eyes of an idle person like myself, who has set himself to observe you, why, you become puzzled, disturbed or irritated.