Nothing is, everything is becoming.

Men who love wisdom should acquaint themselves with a great many particulars.

The waking have one common world, but the sleeping turn aside each into a world of his own

Nothing endures but change. There is nothing permanent except change. All is flux, nothing stays still.

Unless you expect the unexpected you will never find it, for it is hard to discover and hard to attain.

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.

It is better to conceal ignorance than to expose it.