When You Are Face To Face With

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.

Suppose That You Could Mark The Molecules In A Glass Of Water; Then Pour The Contents Of The Glass Into The Ocean And Stir The Latter Throughly So As To Distribute The Marked Molecules Uniformly Throughout The Seven Seas; If Then You Took A Glass Of Water Anywhere Out Of The Ocean, You Would Find In It About A Hundred Of Your Marked Molecules.

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.

There Cannot Be A Greater Mistake Than That Of Looking Superciliously Upon Practical Applications Of Science. The Life And Soul Of Science Is Its Practical Application.

Can You Measure It? Can You Express It In Figures? Can You Make A Model Of It? If Not, Your Theory Is Apt To Be Based More Upon Imagination Than Upon Knowledge.