What philosophy is that people can't step into the same river twice?

Analysis and understanding: When people step in for the second time, the river is no longer the original water flow, because water has fluidity, and running water is no longer the original water flow. This shows that things are constantly changing and absolutely moving. So, when you step into the same river for the second time, it has changed, and it is no longer the original one.

So is life. No matter how silently time flows, things and people are constantly changing because of the flow of time, so in the same way, "people can't meet the same thing twice" and "people can't meet the same person twice".

Related information:

The ancient Greek philosopher Heraclitus said, "One cannot step into the same river twice". After Miletus School and Pythagoras School, Heraclitus founded the philosophy of change. His philosophy is full of dialectics, which has a great influence on the later development of dialectics.

Since Heraclitus admits that the universe is an eternal fire, which is constantly transformed into everything, and everything is constantly transformed into fire, the idea of change will inevitably occupy an important position in his philosophy, so that later people call his philosophy the philosophy of change.

He vividly expressed his thoughts on change. He said, "The sun is new every day." He compared existence to a river, claiming that one cannot step into the same river twice. Because when people enter the river for the second time, it is a new water flow instead of the original one.