Worship The Spirit Of Criticism.

I Am On The Edge Of Mysteries And The Veil Is Getting Thinner And Thinner.

As In The Experimental Sciences, Truth Cannot Be Distinguished From Error As Long As Firm Principles Have Not Been Established Through The Rigorous Observation Of Facts.

How Do You Know That The Incessant Progress Of Science Will Not Compel Scientists To Consider That Life Has Existed During Eternity, And Not Matter?

When You Believe You Have Found An Important Scientific Fact, And Are Feverishly Curious To Publish It, Constrain Yourself For Days, Weeks, Years Sometimes, Fight Yourself, Try And Ruin Your Own Experiments, And Only Proclaim Your Discovery After Having Exhausted All Contrary Hypotheses. But When, After So Many Efforts You Have At Last Arrived At A Certainty, Your Joy Is One Of The Greatest Which Can Be Felt By A Human Soul.

In That Memorable Year, 1822: Oersted, A Danish Physicist, Held In His Hands A Piece Of Copper Wire, Joined By Its Extremities To The Two Poles Of A Volta Pile. On His Table Was A Magnetized Needle On Its Pivot, And He Suddenly Saw (by Chance You Will Say, But Chance Only Favours The Mind Which Is Prepared) The Needle Move And Take Up A Position Quite Different From The One Assigned To It By Terrestrial Magnetism. A Wire Carrying An Electric Current Deviates A Magnetized Needle From Its Position. That, Gentlemen, Was The Birth Of The Modern Telegraph.