“We rest. A dream has power to poison sleep; We rise. One wandering thought pollutes the day; We feel, conceive or reason, laugh or weep; Embrace fond woe, or cast our cares away: It is the same! For, be it joy or sorrow, The path of its departure still is free: Man’s yesterday may ne’er be like his morrow; Nought may endure but Mutability.”

Eight lines from the poem “Mutability” are quoted in Frankenstein