You Know Only Insofar As

The Life And Soul Of Science Is Its Practical Application, And Just As The Great Advances In Mathematics Have Been Made Through The Desire Of Discovering The Solution Of Problems Which Were Of A Highly Practical Kind In Mathematical Science, So In Physical Science Many Of The Greatest Advances That Have Been Made From The Beginning Of The World To The Present Time Have Been Made In The Earnest Desire To Turn The Knowledge Of The Properties Of Matter To Some Purpose Useful To Mankind.

Questions Of Personal Priority, However Interesting They May Be To The Persons Concerned, Sink Into Insignificance In The Prospect Of Any Gain Of Deeper Insight Into The Secrets Of Nature.

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.

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.

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.