Nothing endures but change. There is nothing permanent except change. All is flux, nothing stays still.
Hide our ignorance as we will, an evening of wine soon reveals it.
Men who love wisdom should acquaint themselves with a great many particulars.
Nature is wont to hide herself.
Opposition brings concord. Out of discord comes the fairest harmony.
Heraclitus somewhere says that all things are in process and nothing stays still, and likening existing things to the stream of a river he says that you would not step twice into the same river.