We carve out groups of stars in the heavens, and call them constellations, and the stars patiently suffer us to do so–tho if they knew what we were doing, some of them might feel much surprised at the partners we had given them. We name the same constellation diversely, as Charles’s Wain, the Great Bear, or the Dipper. None of the names will be false, and one will be as true as another, for all are applicable.

In all these cases we humanly make an addition to some sensible reality, and that reality tolerates the addition. All the additions ‘agree’ with the reality; they fit it, while they build it out. No one of them is false. Which may be treated as the more true, depends altogether on the human use of it. If the 27 is a number of dollars which I find in a drawer where I had left 28, it is 28 minus 1. If it is the number of inches in a shelf which I wish to insert into a cupboard 26 inches wide, it is 26 plus 1. If I wish to ennoble the heavens by the constellations I see there, ‘Charles’s Wain’ would be more true than ‘Dipper.’ My friend Frederick Myers was humorously indignant that that prodigious star-group should remind us Americans of nothing but a culinary utensil.

What shall we call a THING anyhow? It seems quite arbitrary, for we carve out everything, just as we carve out constellations, to suit our human purposes. For me, this whole ‘audience’ is one thing, which grows now restless, now attentive. I have no use at present for its individual units, so I don’t consider them. So of an ‘army,’ of a ‘nation.’ But in your own eyes, ladies and gentlemen, to call you ‘audience’ is an accidental way of taking you. The permanently real things for you are your individual persons. To an anatomist, again, those persons are but organisms, and the real things are the organs. Not the organs, so much as their constituent cells, say the histologists; not the cells, but their molecules, say in turn the chemists.

PRAGMATISM - A New Name for Some Old Ways of Thinking, William James, Lecture VII - Pragmatism and Humanism