It is not accidental that all phenomena of human life are dominated by the search for daily bread - the oldest link connecting all living things, man included, with the surrounding nature.
Ivan PavlovMen are apt to be much more influenced by words than by the actual facts of the surrounding reality
Ivan PavlovAppetite, craving for food, is a constant and powerful stimulator of the gastric glands.
Ivan PavlovWhen the dog is repeatedly teased with the sight of objects inducing salivary secretion from a distance, the reaction of the salivary glands grows weaker and weaker and finally drops to zero.
Ivan Pavlov