It Is Not Accidental That All Phenomena

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.

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.

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.

Don't Become A Mere Recorder Of Facts, But Try To Penetrate The Mystery Of Their Origin.