X-rays ... I Am Afraid Of Them.

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.

Books Will Soon Be Obsolete In The Schools... Our School System Will Be Completely Changed In The Next Ten Years.

Maturity Is Often More Absurd Than Youth And Very Frequently Is Most Unjust To Youth.

Incurably Religious, That Is The Best Way To Describe The Mental Condition Of So Many People.

It Is Very Different To Make A Practical System And To Introduce It. A Few Experiments In The Laboratory Would Prove The Practicability Of System Long Before It Could Be Brought Into General Use. You Can Take A Pipe And Put A Little Coal In It, Close It Up, Heat It And Light The Gas That Comes Out Of The Stem, But That Is Not Introducing Gas Lighting. I'll Bet That If It Were Discovered To-morrow In New York That Gas Could Be Made Out Of Coal It Would Be At Least Five Years Before The System Would Be In General Use.