101 Zen Stories | MetaFilter: "One day Chuang-tzu and a friend were walking along a riverbank. 'How delightfully the fishes are enjoying themselves in the water!' Chuang-tzu exclaimed.
'You are not a fish,' his friend said. 'How do you know whether or not the fishes are enjoying themselves?'
'You are not me,' Chuang-tzu said. 'How do you know that I do not know that the fishes are enjoying themselves?'"
'You are not a fish,' his friend said. 'How do you know whether or not the fishes are enjoying themselves?'
'You are not me,' Chuang-tzu said. 'How do you know that I do not know that the fishes are enjoying themselves?'"