Every concept originates through our equating what is unequal. No leaf ever wholly equals another, and the concept "leaf" is formed through an arbitrary abstraction from these individual differences, through forgetting the distinctions; and now it gives rise to the idea that in nature there might be something besides the leaves which would be "leaf" - some kind of original form after which all leaves have been woven, marked, copied, colored, curled, and painted, but by unskilled hands, so that no copy turned out to be a correct, reliable, and faithful image of the original form.

@maison_faim Nice post.

The Universe is vast and complex. Humankind tries to understand it, one way to grasp easier is to catalog and group things, facts, theories and proven knowledge in categories. Families. Genres.

Some simplification is needed, to allow somewhat disparate elements to fit together and the system to work.