Another date for laughter

"e;She sat by the river washing her feet, she said: Water, you really keep your promise. You come on time every day. The water spoke back: What I saw yesterday wasn't me, I just got here. She sighed and said: Fortunately, the river hasn't changed, otherwise I wouldn't have a place to go. The water said: The water isn't the same water, so the river isn't the same river either. A flock of wild geese...