There Is Nothing In Science

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.

Radio Has No Future." "x-rays Are Clearly A Hoax". "the Aeroplane Is Scientifically Impossible.

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

Do Not Imagine That Mathematics Is Hard And Crabbed, And Repulsive To Common Sense. It Is Merely The Etherealization Of Common Sense.

I Can Never Satisfy Myself Until I Can Make A Mechanical Model Of A Thing. If I Can Make A Mechanical Model, I Can Understand It. As Long As I Cannot Make A Mechanical Model All The Way Through I Cannot Understand.