Men are apt to be much more influenced by words than by the actual facts of the surrounding reality
Ivan PavlovIf we could look through the skull into the brain of a consciously thinking person, and if the place of optimal excitability were luminous, then we should see playing over the cerebral surface, a bright spot with fantastic, waving borders constantly fluctuating in size and form, surrounded by a darkness more or less deep, covering the rest of the hemisphere.
Ivan PavlovEdible substances evoke the secretion of thick, concentrated saliva. Why? The answer, obviously, is that this enables the mass of food to pass smoothly through the tube leading from the mouth into the stomach.
Ivan PavlovAppetite, craving for food, is a constant and powerful stimulator of the gastric glands.
Ivan Pavlov