I never perfected an invention that I did not think about in terms of the service it might give others... I find out what the world needs, then I proceed to invent.

Until man duplicates a blade of grass, nature can laugh at his so-called scientific knowledge. Remedies from chemicals will never stand in favor compared with the products of nature, the living cell of the plant, the final result of the rays of the sun, the mother of all life.

Nineteen hundred and three will bring great advances in surgery, in the study of bacteria, in the knowledge of the cause and prevention of disease. Medicine is played out. Every new discovery of bacteria shows us all the more convincingly that we have been wrong and that the million tons of stuff we have taken was all useless.

There is far more opportunity than there is ability.

When you have exhausted all possibilities, remember this - you haven't.

I am so deaf I am debarred from hearing all the time articulation and have to depend on the judgment of others.

Genius is one percent inspiration, ninety-nine percent perspiration.