Observe her with your mind,
and do not sit with wondering eyes!
She it is who is believed to be implanted in mortal limbs also;
through her they think friendly thoughts and perform harmonious
actions, calling her joy and Aphrodite.
No mortal man has perceived her as she moves in and out among them.
But you must listen to the undeceitful progress of my argument.
All these (elements) are equal and of the same age in their creation;
but each presides over its own office, and each has its own character,
and they prevail in turn in the course of time.
And besides these, nothing else comes into being, 
nor does anything cease.
For if they had been perishing continously, they would be no more;
and what could increase the whole?
And whence could it have come?
In what direction could it perish, 
since nothing is empty of these things?
No, but these things alone exist, and running through one another
they become different things at different times,
and are ever continously the same.