Dr. Louis Pasteur: [speaking to the Emperor] Sire, the hospitals of Paris are pesthouses. There's scarcely a doctor in the city who's not carrying death on his hands and instruments.
Dr. Charbonnet: Because of microbes, Monsieur? Your private menagerie of invisible beasts?
Dr. Louis Pasteur: Exactly. Doctor Charbonnet could see them for himself if he took the trouble to use his microscope. He could watch them multiply into murderous millions. They breed in filth. They may start from the gutters