Each day we go to our work in the hope of discovering.

Great moments are born with great opportunity.

Of all things, I liked books best.

Nature may reach the same result in many ways.

The progressive development of man is vitally dependent on invention.

The entire Earth will be converted into a huge brain

Every living being is an engine geared to the wheel-work of the universe.

Every effort under compulsion demands a sacrifice of energy. I never paid such a price.

The last 29 days of the month are the toughest!

I have harnessed the cosmic rays and caused them to operate a motive device.

All peoples everywhere should have free energy sources.

The future will show whether my foresight is as accurate now as it has proved heretofore.

The idea came like a flash of lightning and in an instant, the truth was revealed.

Is nature a giant cat? If so, who strokes its back?

Originality thrives in seclusion free of outside influences

The present is theirs; the future, for which I really worked, is mine.

My brain is only a receiver, in the Universe

Marconi is a good fellow. Let him continue. He is using seventeen of my patents.

Our senses enable us to perceive only a minute portion of the outside world.