Science Demands From A Man

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?

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.

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.

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.

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.