Quotes by Ivan Pavlov - Page 1

Learn, compare, collect the facts!
Ivan Pavlov / Physiologist
Compare
Facts
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Learn the ABC of science before you try to ascend to its summit.
Ivan Pavlov / Physiologist
Summit
Trying
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The gastric laboratory uses its protein ferment under an acid reaction.
Ivan Pavlov / Physiologist
Acid
Gastric
Laboratory
Protein
Reactions
Use
Ferment
Reaction
Uses
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Perfect as the wing of a bird may be, it will never enable the bird to fly.
Ivan Pavlov / Physiologist
Bird
Perfect
Wings
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While you are experimenting, do not remain content with the surface of things.
Ivan Pavlov / Physiologist
Surface
Content
Experimenting
Remain
While
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Don't become a mere recorder of facts, but try to penetrate the mystery of their origin.
Ivan Pavlov / Physiologist
Facts
Mere
Mystery
Penetrate
Psychology
Trying
Try
Become
Origin
Recorder
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Appetite, craving for food, is a constant and powerful stimulator of the gastric glands.
Ivan Pavlov / Physiologist
Adrenal Glands
Appetite
Constant
Craving
Gastric
Glands
Powerful
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But man has still another powerful resource: natural science with its strictly objective methods.
Ivan Pavlov / Physiologist
Men
Science
Natural
Natural Science
Objectivity
Powerful
Still
Methods
Objective
Strictly
Resource
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Men are apt to be much more influenced by words than by the actual facts of the surrounding reality
Ivan Pavlov / Physiologist
Men
Facts
Reality
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Physiology has, at last, gained control over the nerves which stimulate the gastric glands and the pancreas.
Ivan Pavlov / Physiologist
Adrenal Glands
Gastric
Glands
Lasts
Nerves
Physiology
Gained
Stimulate
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It is still open to question whether psychology is a natural science, or whether it can be regarded as a science at all.
Ivan Pavlov / Physiologist
Natural
Psychology
Stills
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As we have seen, bread, and especially dry bread, evokes secretion of considerably larger quantities of saliva than meat.
Ivan Pavlov / Physiologist
Bread
Dry
Meat
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School yourself to demureness and patience. Learn to inure yourself to drudgery in science. Learn, compare, collect the facts.
Ivan Pavlov / Physiologist
Compare
Facts
School
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Never think that you already know all. However highly you are appraised, always have the courage to say to yourself-I am ignorant.
Ivan Pavlov / Physiologist
Ignorance
Ignorant
Thinking
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Do not become archivists of facts. Try to penetrate to the secret of their occurrence, persistently search for the laws which govern them.
Ivan Pavlov / Physiologist
Science
Law
Secret
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Science demands from a man all his life. If you had two lives that would not be enough for you. Be passionate in your work and in your searching.
Ivan Pavlov / Physiologist
Men
Passion
Two
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The Sun-Paul must consider only one thing: what is the relation of this or that external reaction of the animal to the phenomena of the external world?
Ivan Pavlov / Physiologist
Animal
Sun
World
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Gradualness, gradualness, and gradualness. From the very beginning of your work, school yourself to severe gradualness in the accumulation of knowledge.
Ivan Pavlov / Physiologist
Accumulation
School
Severe
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Only by observing this condition would the results of our work be regarded as fully conclusive and as having elucidated the normal course of the phenomena.
Ivan Pavlov / Physiologist
Normal
Observing
Conclusive
Course
Phenomena
Fully
Regarded
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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 / Physiologist
Clear
Eating
Gastric
Glands
Ice Cream
Mere
Reaching
Stimulation
Swag
Determines
Experiment
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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 / Physiologist
Men
Science
Air
Bird
Facts
May
Perfect
Wings
Rise
Man
Never
Them
Without
Enable
Fly
Wing
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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 Pavlov / Physiologist
Men
Bread
Connecting
Daily Bread
Human Life
Links
Life Nature Man
Accidental
Daily
Dominated
Phenomena
Included
Link
Oldest
Search
Surrounding
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When 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 / Physiologist
Zero
Distance
Dog
Sight
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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 of these nerves in normal activity.
Ivan Pavlov / Physiologist
Activity
Existence
Experiments
Glands
Nerves
Normal
Participation
Apparatus
Clearly
Proved
Showing
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As was to be expected, the discovery of the nervous apparatus of the salivary glands immediately impelled physiologists to seek a similar apparatus in other glands lying deeper in the digestive canal.
Ivan Pavlov / Physiologist
Adrenal Glands
Deeper
Discovery
Glands
Lying
Nervous
Apparatus
Canal
Digestive
Immediately
Impelled
Seek
Similar
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In the case of the stomach, however, the nerves of the glandular cells were always severed when constructing an artificially isolated pouch and this, naturally, affected the normal work of the stomach.
Ivan Pavlov / Physiologist
Cells
Isolated
Nerves
Normal
Stomach
Naturally
Artificially
Constructing
Severed
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The physiologist who succeeds in penetrating deeper and deeper into the digestive canal becomes convinced that it consists of a number of chemical laboratories equipped with various mechanical devices.
Ivan Pavlov / Physiologist
Chemicals
Deeper
Devices
Numbers
Succeed
Becomes
Canal
Chemical
Consists
Digestive
Equipped
Number
Mechanical
Penetrating
Succeeds
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Edible 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 Pavlov / Physiologist
Answers
Evoke
Mass
Mouths
Saliva
Stomach
Substance
Thick
Concentrated
Edible
Enables
Leading
Mouth
Obviously
Pass
Smoothly
Substances
Tube
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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 of the body, but turned inwards and thus hidden in the organism.
Ivan Pavlov / Physiologist
Body
Canals
Passing
World
External
Canal
Communicating
Digestive
Entire
External World
Hidden
Organism
Thus
Tube
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Our success was mainly due to the fact that we stimulated the nerves of animals that easily stood on their own feet and were not subjected to any painful stimulus either during or immediately before stimulation of their nerves.
Ivan Pavlov / Physiologist
Animal
Feet
Nerves
Painful
Animals
Easily
Due
Either
Immediately
Mainly
Stimulated
Subjected
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Thanks to our present surgical methods in physiology we can demonstrate at any time almost all phenomena of digestion without the loss of even a single drop of blood, without a single scream from the animal undergoing the experiment.
Ivan Pavlov / Physiologist
Animal
Blood
Digestion
Loss
Physiology
Scream
Thanks
Almost All
Demonstrate
Drop
Phenomena
Experiment
Methods
Surgical
Undergoing
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Possibilities are like the wings of birds; they allow man to soar and to climb to the heavens. And facts are like the atmosphere against which those wings must beat, and without which the soaring bird will surely plummet back to earth.
Ivan Pavlov / Physiologist
Men
Bird
Wings
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It is clear to all that the animal organism is a highly complex system consisting of an almost infinite series of parts connected both with one another and, as a total complex, with the surrounding world, with which it is in a state of equilibrium.
Ivan Pavlov / Physiologist
Animal
Connected
Equilibrium
Infinite
Series
World
Complex
Complex System
Consisting
Total
Highly
Organism
Parts
Surrounding
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It has long been known for sure that the sight of tasty food makes a hungry man's 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 / Physiologist
Men
Appetite
Digestion
Hungry
Linked
Long
Might
Phenomenon
Process
Sight
Tasty
Undesirable
Water
Sure
Also
Conclude
Essentially
Makes
Mouth
Regarded
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It goes without saying that the desire to accomplish the task with more confidence, to avoid wasting time and labour, and to spare our experimental animals as much as possible, made us strictly observe all the precautions taken by surgeons in respect to their patients.
Ivan Pavlov / Physiologist
Confidence
Accomplish
Animal
Desire
Labour
Taken
Wasting Time
Animals
Avoid
Experimental
Observe
Patients
Strictly
Spare
Task
Wasting
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Finally, as the digestive canal is a complex system, a series of separate chemical laboratories, I cut the connections between them in order to investigate the course of phenomena in each particular laboratory; thus I resolved the digestive canal into several separate parts.
Ivan Pavlov / Physiologist
Connections
Cutting
Laboratory
Order
Particular
Series
Canal
Chemical
Complex
Complex System
Cut
Digestive
Phenomena
Finally
Investigate
Parts
Resolved
Several
Thus
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I am convinced that an important stage of human thought will have been reached when the physiological and the psychological, the objective and the subjective, are actually united, when the tormenting conflicts or contradictions between my consciousness and my body will have been factually resolved or discarded.
Ivan Pavlov / Physiologist
Science
Important
Psychology
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Mankind will possess incalculable advantages and extraordinary control over human behavior when the scientific investigator will be able to subject his fellow men to the same external analysis he would employ for any natural object, and when the human mind will contemplate itself not from within but from without.
Ivan Pavlov / Physiologist
Men
Analysis
Mind
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If 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 Pavlov / Physiologist
Darkness
Skulls
Thinking
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One can truly say that the irresistible progress of natural science since the time of Galileo has made its first halt before the study of the higher parts of the brain, the organ of the most complicated relations of the animal to the external world. And it seems, and not without reason, that now is the really critical moment for natural science; for the brain, in its highest complexity-the human brain-which created and creates natural science, itself becomes the object of this science.
Ivan Pavlov / Physiologist
Science
Animal
Brain
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The digestive canal is in its task a complete chemical factory. The raw material passes through a long series of institutions in which it is subjected to certain mechanical and, mainly, chemical processing, and then, through innumerable side-streets, it is brought into the depot of the body. Aside from this basic series of institutions, along which the raw material moves, there is a series of lateral chemical manufactories, which prepare certain reagents for the appropriate processing of the raw material.
Ivan Pavlov / Physiologist
Science
Long
Moving
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In the dog two conditions were found to produce pathological disturbances by functional interference, namely, an unusually acute clashing of the excitatory and inhibitory processes, and the influence of strong and extraordinary stimuli. In man precisely similar conditions constitute the usual causes of nervous and psychic disturbances. Different conditions productive of extreme excitation, such as intense grief or bitter insults, often lead, when the natural reactions are inhibited by the necessary restraint, to profound and prolonged loss of balance in nervous and psychic activity.
Ivan Pavlov / Physiologist
Dog
Grief
Strong
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