"Out of nothing comes nothing" versus "Perpetual flux". Epicurus of Samos (341-270 BCE); Heraclitus of Ephesus (535-475 BCE).
von Segesser
Ludwig K
LK
D016507:Cardiology Service, Hospital / Q000458:organization & administration*; D006330:Heart Defects, Congenital / Q000601:surgery*; D006801:Humans; D010686:Philosophy, Medical; D013903:Thoracic Surgery / Q000193:education / Q000458:organization & administration*