Opportunity is missed by most people because it is dressed in overalls and looks like work.

Nearly every man who develops an idea works it up to the point where it looks impossible, and then he gets discouraged. That's not the place to become discouraged.

I never did anything by accident, nor did any of my inventions come by accident; they came by work.

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

The real measure of success is the number of experiments that can be crowded into 24 hours.

Being busy does not always mean real work. The object of all work is production or accomplishment and to either of these ends there must be forethought, system, planning, intelligence, and honest purpose, as well as perspiration. Seeming to do is not doing.

We haven't failed. We now know a thousand things that won't work, so we are much closer to finding what will.