Plato finds it necessary to separate, for example, "horseness" from "horse" and say that horseness is real and fixed and true and unmoving, while the horse is a mere, unimportant, transitory phenomenon. Horseness is pure Idea. The horse that one sees is a collection of changing Appearances, a horse that can flux and move around all it wants to and even die on the spot without disturbing horseness, which is the Immortal Principle and can go on forever in the path of the Gods of old.
For Nature while I supervise gives birth to moving and unmoving, and as this motive-force applies the cosmos is revolving.
Time present and time past Are both perhaps present in time future, And time future contained in time past. What might have been and what has been Point to one end, which is always present. ...Desire itself is movement Not in itself desirable; Love is itself unmoving, Only the cause and end of movement, Timeless, and undesiring Except in the aspect of time Caught in the form of limitation Between un-being and being.
A drop of patience: but, alas, to make me A fixed figure, for the time of scorn To point his slow unmoving finger at!william shakespeare