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“Sounds travel through space long after their wave patterns have ceased to be detectable by the human ear: some cut right through the ionosphere and barrel on out into the cosmic heartland, while others bounce around, eventually being absorbed into the vibratory fields of earthly barriers, but in neither case does the energy succumb; it goes on forever - which is why we, each of us, should take pains to make sweet notes.”
― Tom Robbins

“Souls cross ages like clouds cross skies, an' tho' a cloud's shape nor hue nor size don't stay the same, it's still a cloud an' so is a soul. Who can say where the cloud's blowed from or who the soul'll be 'morrow? Only Sonmi the east an' the west an' the compass an' the atlas, yay, only the atlas o' clouds.”
― David Mitchell, Cloud Atlas