If I could solve all the problems myself, I would.

Direct thought is not an attribute of feminity. In this, women are now centuries behind man.

Of all my inventions, I liked the phonograph best

The three things that are most essential to achievement are common sense, hard work and stick-to-it-iv-ness... Unfortunately, many of life's failures are experienced by people who did not realize how close they were to success when they gave up. I have far more respect for the person with a single idea who gets there than for the person with a thousand ideas who does nothing.

Whatever the mind of man creates, should be controlled by man's character.

The world owes nothing to any man, but every man owes something to the world.

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