William Butler Yeats,
Rosa Alchemica — Part III
(1914)
“ In this way all great events were accomplished; a mood, a divinity, or a demon, first descending like a faint sigh into men's minds and then changing their thoughts and their actions until hair that was yellow had grown black, or hair that was black had grown yellow, and empires moved their border, as though they were but drifts of leaves. ”
