You Know Only Insofar As

The Only Census Of The Senses, So Far As I Am Aware, That Ever Before Made Them More Than Five, Was The Irishman's Reckoning Of Seven Senses. I Presume The Irishman's Seventh Sense Was Common Sense; And I Believe That The Possession Of That Virtue By My Countrymen-i Speak As An Irishman.

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.

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

Nothing Can Be More Fatal To Progress Than A Too Confident Reliance On Mathematical Symbols; For The Student Is Only Too Apt To Take The Easier Course, And Consider The Formula Not The Fact As The Physical Reality.

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