If We Can't Express What We Know

Fourier Is A Mathematical Poem.

Although Mechanical Energy Is Indestructible, There Is A Universal Tendency To Its Dissipation, Which Produces Throughout The System A Gradual Augmentation And Diffusion Of Heat, Cessation Of Motion And Exhaustion Of The Potential Energy Of The Material Universe

I Have Not The Smallest Molecule Of Faith In Aerial Navigation Other Than Ballooning, Or Of The Expectation Of Good Results From Any Of The Trials We Heard Of. So You Will Understand That I Would Not Care To Be A Member Of The Aeronautical Society.

If We Can't Express What We Know In The Form Of Numbers, We Really Don't Know Much About It.

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.