Vision without execution is delusion.

The trouble with most people is that they quit before they start.

I have been at work for some time building an apparatus to see if it is possible for personalities which have left this earth to communicate with us.

I start where the last man left off.

It is very beautiful over there. (last words)

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.".

Success is the product of the severest kind of mental and physical application.