One Thing
The elements of knowledge structures mentioned before are exactly that what we have elsewhere called the objects or bodies or particles of knowledge. Nowadays we may primarily think of data, but every other representation of some knowledge (or information, as one might sometimes say) is also implied; it merely must be reproducible and somehow uniformly applicable so that it has kind of constant meaning. Like a mathematical formula, for example. Or a description of a plant. That means that these elements or objects or things may have quite different forms, some of them very complex. Still, in a way each of them is one thing. “One” just means that it may be duplicated as a whole, One is the base of every plurality. And seen in this light every such thing is — in spite of all possible complexity — simple. This is no magic, but sheer logic.