True Science Teaches Us To Doubt And,

It Has Often Been Said That, To Make Discoveries, One Must Be Ignorant. This Opinion, Mistaken In Itself, Nevertheless Conceals A Truth. It Means That It Is Better To Know Nothing Than To Keep In Mind Fixed Ideas Based On Theories Whose Confirmation We Constantly Seek, Neglecting Meanwhile Everything That Fails To Agree With Them.

In A Word, I Consider Hospitals Only As The Entrance To Scientific Medicine; They Are The First Field Of Observation Which A Physician Enters; But The True Sanctuary Of Medical Science Is A Laboratory; Only There Can He Seek Explanations Of Life In The Normal And Pathological States By Means Of Experimental Analysis.

A Discovery Is Generally An Unforeseen Relation Not Included In Theory.

Now, A Living Organism Is Nothing But A Wonderful Machine Endowed With The Most Marvellous Properties And Set Going By Means Of The Most Complex And Delicate Mechanism.

Men Who Believe Too Firmly In Their Theories, Do Not Believe Enough In The Theories Of Others. So ... These Despisers Of Their Fellows ... Make Experiments Only To Destroy A Theory, Instead Of To Seek The Truth.