If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.

Money does not represent such a value as men have placed upon it. All my money has been invested into experiments with which I have made new discoveries enabling mankind to have a little easier life.

With a different form of wireless instrument devised by me some years ago it was found practicable to locate a body of metallic ore below the ground, and it seems that a submarine could be similarly detected.

If your hate could be turned into electricity, it would light up the whole world.

A century from now it will no more occur to a normal person to mate with a person eugenically unfit than to marry a habitual criminal.

In a crystal we have clear evidence of the existence of a formative life principle, and though we cannot understand the life of a crystal, it is nonetheless a living being

Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more.