If You Cannot Measure It, Then It

When You Cannot Measure, Your Knowledge Is Meager And Unsatisfactory.

Simplification Of Modes Of Proof Is Not Merely An Indication Of Advance In Our Knowledge Of A Subject, But Is Also The Surest Guarantee Of Readiness For Farther Progress.

[referring To Fourier's Mathematical Theory Of The Conduction Of Heat] ... Fourier's Great Mathematical Poem.

If You Can Not Measure It, You Can Not Improve It.

In Physical Science A First Essential Step In The Direction Of Learning Any Subject Is To Find Principles Of Numerical Reckoning And Practicable Methods For Measuring Some Quality Connected With It. 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; It May Be The Beginning Of Knowledge, But You Have Scarcely In Your Thoughts Advanced To The Stage Of Science, Whatever The Matter May Be.