Science Does Not Permit Exceptions.

Mediocre Men Often Have The Most Acquired Knowledge. It Is In The Darker. It Is In The Darker Regions Of Science That Great Men Are Recognized; They Are Marked By Ideas Which Light Up Phenomena Hitherto Obscure And Carry Science Forward.

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.

A Great Discovery Is A Fact Whose Appearance In Science Gives Rise To Shining Ideas, Whose Light Dispels Many Obscurities And Shows Us New Paths.

A Fact In Itself Is Nothing. It Is Valuable Only For The Idea Attached To It, Or For The Proof Which It Furnishes.

We Must Remain, In A Word, In An Intellectual Disposition Which Seems Paradoxical, But Which, In My Opinion, Represents The True Mind Of The Investigator. We Must Have A Robust Faith And Yet Not Believe.