Perfect as the wing of a bird may be, it will never enable the bird to fly. — Ivan Pavlov Copy Share Image
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 Copy Share Image
Our experiments not only proved the existence of a nervous apparatus in the above-mentioned glands, but also disclosed some facts clearly showing the participation… — Ivan Pavlov Copy Share Image
Only by observing this condition would the results of our work be regarded as fully conclusive and as having elucidated the normal course of… — Ivan Pavlov Copy Share Image
The digestive canal represents a tube passing through the entire organism and communicating with the external world, i.e. as it were the external surface… — Ivan Pavlov Copy Share Image
It is not accidental that all phenomena of human life are dominated by the search for daily bread - the oldest link connecting all… — Ivan Pavlov Copy Share Image
I am convinced that an important stage of human thought will have been reached when the physiological and the psychological, the objective and the… — Ivan Pavlov Copy Share Image
Appetite, craving for food, is a constant and powerful stimulator of the gastric glands. — Ivan Pavlov Copy Share Image
In the case of the stomach, however, the nerves of the glandular cells were always severed when constructing an artificially isolated pouch and this,… — Ivan Pavlov Copy Share Image
Physiology has, at last, gained control over the nerves which stimulate the gastric glands and the pancreas. — Ivan Pavlov Copy Share Image
As we have seen, bread, and especially dry bread, evokes secretion of considerably larger quantities of saliva than meat. — Ivan Pavlov Copy Share Image
Edible substances evoke the secretion of thick, concentrated saliva. Why? The answer, obviously, is that this enables the mass of food to pass smoothly… — Ivan Pavlov Copy Share Image
Don't become a mere recorder of facts, but try to penetrate the mystery of their origin. — Ivan Pavlov Copy Share Image
