It Is Surprising That People Do Not

I Have To Keep Going To Find Out Ultimately What Is The Matter With It In The End.

It Is Not Unscientific To Make A Guess, Although Many People Who Are Not In Science Think It Is.

For Far More Marvelous Is The Truth Than Any Artists Of The Past Imagined It. Why Do The Poets Of The Present Not Speak Of It? What Men Are Poets Who Can Speak Of Jupiter If He Were A Man, But If He Is An Immense Spinning Sphere Of Methane And Ammonia Must Be Silent?

Our Freedom To Doubt Was Born Out Of A Struggle Against Authority In The Early Days Of Science. It Was A Very Deep And Strong Struggle: Permit Us To Question - To Doubt - To Not Be Sure. I Think That It Is Important That We Do Not Forget This Struggle And Thus Perhaps Lose What We Have Gained.

When A Scientist Doesn't Know The Answer To A Problem, He Is Ignorant. When He Has A Hunch As To What The Result Is, He Is Uncertain. And When He Is Pretty Darn Sure Of What The Result Is Going To Be, He Is Still In Some Doubt. We Have Found It Of Paramount Importance That In Order To Progress We Must Recognize Our Ignorance And Leave Room For Doubt. Scientific Knowledge Is A Body Of Statements Of Varying Degrees Of Certainty - Some Most Unsure, Some Nearly Sure, But None Absolutely Certain.