Thomas Alva Edison

Nearly every man who develops an idea works it up to the point where it
looks impossible, and then gets read more

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

There is no substitute for hard work.

There is no substitute for hard work.

Many of life's failures are people who did not realize how close they
were to success when they gave up.

Many of life's failures are people who did not realize how close they
were to success when they gave up.

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

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

Discontent is the first necessity of progress.

Discontent is the first necessity of progress.