We Must Keep Our Freedom

The Better Educated We Are And The More Acquired Information We Have, The Better Prepared Shall We Find Our Minds For Making Great And Fruitful Discoveries.

It Is Impossible To Devise An Experiment Without A Preconceived Idea; Devising An Experiment, We Said, Is Putting A Question; We Never Conceive A Question Without An Idea Which Invites An Answer. I Consider It, Therefore, An Absolute Principle That Experiments Must Always Be Devised In View Of A Preconceived Idea, No Matter If The Idea Be Not Very Clear Nor Very Well Defined.

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.

The Investigator Should Have A Robust Faith - And Yet Not Believe.

The True Worth Of An Experimenter Consists In His Pursuing Not Only What He Seeks In His Experiment, But Also What He Did Not Seek.