TIM (about six years), while busily engaged in licking a pot, asked, “Papa, how can we be sure that everything is not a dream?” (p. 1) Am I Chuang-Tzu, dreamin

TIM (about six years), while busily engaged in licking a pot, asked, “Papa, how can we be sure that everything is not a dream?” (p. 1) Am I Chuang-Tzu, dreaming I am a butterfly, or a butterfly, dreaming I am Chuang-Tzu?