Perfect as the wing of a bird may be, it will never enable the bird to fly if unsupported by the air. Facts are the air of science. Without them a man of science can never rise. – Ivan Pavlov
But man has still another powerful resource: natural science with its strictly objective methods. – Ivan Pavlov
From the described experiment it is clear that the mere act of eating, the food even not reaching the stomach, determines the stimulation of the gastric glands. – Ivan Pavlov
It has long been known for sure that the sight of tasty food makes a hungry mans mouth water also lack of appetite has always been regarded as an undesirable phenomenon, from which one might conclude that appetite is essentially linked with the process of digestion. – Ivan Pavlov