Science Rejects The Indeterminate.

When A Physician Is Called To A Patient, He Should Decide On The Diagnosis, Then The Prognosis, And Then The Treatment. ... Physicians Must Know The Evolution Of The Disease, Its Duration And Gravity In Order To Predict Its Course And Outcome. Here Statistics Intervene To Guide Physicians, By Teaching Them The Proportion Of Mortal Cases, And If Observation Has Also Shown That The Successful And Unsuccessful Cases Can Be Recognized By Certain Signs, Then The Prognosis Is More Certain.

Laplace Considers Astronomy A Science Of Observation, Because We Can Only Observe The Movements Of The Planets; We Cannot Reach Them, Indeed, To Alter Their Course And To Experiment With Them. "on Earth," Said Laplace, "we Make Phenomena Vary By Experiments; In The Sky, We Carefully Define All The Phenomena Presented To Us By Celestial Motion." Certain Physicians Call Medicine A Science Of Observations, Because They Wrongly Think That Experimentation Is Inapplicable To It.

The Terrain Is Everything; The Germ Is Nothing.

The Mental Never Influences The Physical. It Is Always The Physical That Modifies The Mental, And When We Think That The Mind Is Diseased, It Is Always An Illusion.

We Must Never Make Experiments To Confirm Our Ideas, But Simply To Control Them.