Physiology Has, At Last, Gained Control Over

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

Do Not Become Archivists Of Facts. Try To Penetrate To The Secret Of Their Occurrence, Persistently Search For The Laws Which Govern Them.

It Is Still Open To Question Whether Psychology Is A Natural Science, Or Whether It Can Be Regarded As A Science At All.

Physiology Has, At Last, Gained Control Over The Nerves Which Stimulate The Gastric Glands And The Pancreas.

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.