And when I saw my devil, I found him serious, thorough, profound, solemn: he was the spirit of gravity—through him all things fall. Not by wrath, but by laughter, do we slay. Come, let us slay the spirit of gravity! I learned to walk; since then have I let myself run. I learned to fly; since then I do not need pushing in order to move from a spot. Now am I light, now do I fly; now do I see myself under myself. Now there danceth a God in me.— Thus spake Zarathustra.