"We can not step into the same river twice" - Oh yes, we Can!.

The remark put about by Heraclitus of Ephesus Heraclitus of Ephesus ( Ancient Greek:  c. 535–c. 475 BCE)

that we cannon step into the same river twice is not to be trusted because we are always stepping into the same river.

For the sun sucks up and disperses the water whih has oozed into the sea perpetually refeeding the rivers in an endless circularity.