Heraclitus considered the opinions of his fellow beings to be immature and child-like, thus he may not have been fond of Parmenides because their ideas are complete opposites. For example, Heraclitus believed that everything changes and our sensory perceptions are reliable. Keeping those ideas in mind, Heraclitus used this quote to explain that everything changes based on what it goes through. You never step into the same river twice because it has become a new river since the first time you stepped in it. This meant that the world is always growing and deteriorating. It is the circle of life, too. This is applicable to society in that you cannot reverse time. And day after day as time continues and you undergo even insignificant experiences,