• We rest; a dream has power to poison sleep. We rise; one wand'ring 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!

    Percy Bysshe Shelley (2013). “Delphi Complete Works of Percy Bysshe Shelley (Illustrated)”, p.1701, Delphi Classics