• I do not know whether I was then a man dreaming I was a butterfly, or whether I am now a butterfly dreaming I am a man.

    Zhuangzi: I do not know whether I was then a man dreaming I was a butterfly, or whether I am now a butterfly dreaming I am a man.
    'Chuang Tzu' (1889, translated by H. A. Giles) ch. 2