I Have Never Seen The Slightest Scientific

I Never Did Anything Worth Doing Entirely By Accident. . . Almost None Of My Inventions Came About Totally By Accident. They Were Achieved By Having Trained Myself To Endure And Tolerate Hard Work.

Mr. Edison Worked Endlessly On A Problem, Using The Method Of Elimination. If A Person Asked Him If He Were Discouraged Because So Many Attempts Proved Unavailing, He Would Say, "no, I Am Not Discouraged, Because Every Wrong Attempt Discarded Is Another Step Forward.".

Youth Doesn't Take Advice.

There Is Much More Opportunity Than There Are People To See It.

Oh These Mathematicians Make Me Tired! When You Ask Them To Work Out A Sum They Take A Piece Of Paper, Cover It With Rows Of A's, B's, And X's And Y's ... Scatter A Mess Of Flyspecks Over Them, And Then Give You An Answer That's All Wrong!