Ice and iron cannot be welded. - Robert Louis Stevenson

In winter I get up at night,
and dress by yellow candlelight,
In summer, quite the other day,
I have to go to bed by day

... Man is not truly one, but truly two... even if I could rightly be said to be either, it was only because I was radically both...

Under the strain of this continually impending doom and by the sleeplessness to which I now condemned myself, ay, even beyond what I had thought possible to man, I became, in my own person, a creature eaten up and emptied by fever, languidly weak both in body and mind, and solely occupied by one thought: the horror of my other self.