Lee De Forest

The unexamined life is not worth living.

I have always been a keen observer of nature.

The greatest pleasure in life is doing what people say you cannot do.

Success is not final, failure is not fatal: it is the courage to continue that counts.

I have always been a man of my word.

The journey of a thousand miles begins with a single step.

The only thing necessary for the triumph of evil is for good men to do nothing.

Give me a lever long enough and a fulcrum on which to place it, and I shall move the world.

I have always been a firm believer in the power of education.

The best way to predict the future is to invent it.

The audion tube will revolutionize communication as we know it.

I consider my invention not just a device, but a gateway to the invisible world of waves.

Radio is the theater of the mind; television is the theater of the mindless.

While theoretically and technically television may be feasible, commercially and financially it is an impossibility.

The phonofilm will bring sound to the silent screen, transforming entertainment forever.

In the quiet laboratory, great discoveries are born from persistent experimentation.

I am an inventor by nature, driven by curiosity rather than fame.

The grid in the audion controls the flow like a conductor leads an orchestra.

Patents are the lifeblood of progress, yet they often stifle the inventor.

Life is too short for mediocre inventions; aim for the stars in electronics.