Put Off Your Imagination, As You Put

Particular Facts Are Never Scientific; Only Generalization Can Establish Science.

To Be Worthy Of The Name, An Experimenter Must Be At Once Theorist And Practitioner. While He Must Completely Master The Art Of Establishing Experimental Facts, Which Are The Materials Of Science, He Must Also Clearly Understand The Scientific Principles Which Guide His Reasoning Through The Varied Experimental Study Of Natural Phenomena. We Cannot Separate These Two Things: Head And Hand. An Able Hand, Without A Head To Direct It, Is A Blind Tool; The Head Is Powerless Without Its Executive Hand.

All The Vital Mechanisms, Varied As They Are, Have Only One Object, That Of Preserving Constant The Conditions Of Life In The Internal Environment.

We Must Keep Our Freedom Of Mind, ... And Must Believe That In Nature What Is Absurd, According To Our Theories, Is Not Always Impossible.

The Experimenter Who Does Not Know What He Is Looking For Will Not Understand What He Finds.