The only constant in life is change

Of the Logos which is as I describe it men always prove to be uncomprehending, both before they have heard it and when once they have heard it. For although all things happen according to this Logos, they [men] are like people of no experience, even when they experience such words and deeds as I explain, when I distinguish each thing according to its constitution and declare how it is; but the rest of men fail to notice what they do after they wake up just as they forget what they do when asleep.

The Sibyl, with frenzied mouth uttering things not to be laughed at, unadorned and unperfumed, yet reaches to a thousand years with her voice by aid of the god.

There is nothing permanent except change.

If it were not for injustice, men would not know justice.

Eyes are more accurate witnesses than ears.

Many who have learned from Hesiod the countless names of gods and monsters never understand that night and day are one