Character is destiny

“Πάντα ῥεῖ καὶ οὐδὲν μένει.(Everything changes, and no thing abides.)”

“The road up and the road down is one and the same.(ὁδὸς ἄνω κάτω μία καὶ ὡυτή)—…”

“A man's character is his fate.”

“You cannot step twice into the same river, for other waters are continually flo…”