To Measure Is To Know.

Let Nobody Be Afraid Of True Freedom Of Thought. Let Us Be Free In Thought And Criticism; But, With Freedom, We Are Bound To Come To The Conclusion That Science Is Not Antagonistic To Religion, But A Help To It.

Heavier-than-air Flying Machines Are Impossible.

I Believe That The More Thoroughly Science Is Studied, The Further Does It Take Us From Anything Comparable To Atheism.

The Vortex Theory [of The Atom] Is Only A Dream. Itself Unproven, It Can Prove Nothing, And Any Speculations Founded Upon It Are Mere Dreams About Dreams.

I Often Say That When You Can Measure What You Are Speaking About, And Express It In Numbers, You Know Something About It; But When You Cannot Measure It, When You Cannot Express It In Numbers, Your Knowledge Is Of A Meagre And Unsatisfactory Kind.