Every failure is a lesson learned about your strategy.

The doctor of the future will no longer treat the human frame with drugs, but rather will cure and prevent disease with nutrition.

Five percent of the people think; ten percent of the people think they think; and the other eighty-five percent would rather die than think.

I cannot believe in the immortality of the soul. No, all this talk of an existence for us, as individuals, beyond the grave is wrong. It is born of our tenacity of life - our desire to go on living - our dread of coming to an end.

Invention is 10% inspiration and 90% perspiration.

I've never made a mistake. I've only learned from experience.

When we learn how to store electricity, we will cease being apes ourselves; until then we are tailless orangutans. You see, we should utilize natural forces and thus get all of our power. Sunshine is a form of energy, and the winds and the tides are manifestations of energy. Do we use them? Oh, no! We burn up wood and coal, as renters burn up the front fence for fuel. We live like squatters, not as if we owned the property.