Dogs, also, bark at what they do not know.
Everything flows, nothing stays still.
It is hard to contend against one's heart's desire; for whatever it wishes to have it buys at the cost of soul.
Ever-newer waters flow on those who step into the same rivers.
It is better to conceal ignorance than to expose it.
Everything changes but change itself. Everything flows and nothing remains the same... You cannot step twice into the same river, for other waters and yet others go flowing ever on.