First, study the present construction. Second, ask for all past experiences ...study and read everything you can on the subject.

Sticking to it is the genius.

Through all the years of experimenting and research, I never once made a discovery. I start where the last man left off... All my work was deductive, and the results I achieved were those of invention pure and simple.

Be courageous! Have faith! Go forward.

I believe that the motion picture is destined to revolutionize our educational system and that in a few years it will supplant largely, if not entirely, the use of textbooks.

His genius he was quite content in one brief sentence to define; Of inspiration one percent, of perspiration, ninety nine.

I never did a day's work in my life, it was all fun.