Sheep are more intelligent than grass or that haecceity of the writer which manures the greensward.
From the guardian.co.uk
I worried about ephemeral, but used it as a less arcane substitute for the tech term in philosophy, which I think would have to be haecceity.
From the en.wikipedia.org
More examples
Quiddity: the essence that makes something the kind of thing it is and makes it different from any other
Haecceity (from the Latin haecceitas, which translates as "thisness") is a term from medieval philosophy first coined by Duns Scotus which denotes the discrete qualities, properties or characteristics of a thing which make it a particular thing. Haecceity is a person or object's "thisness".
The essence of a particular thing; those qualities that define it and make it unique