We will make electricity so cheap that only the rich will burn candles.

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

The value of an idea lies in the using of it.

Keep on the lookout for novel ideas that others have used successfully. Your idea has to be original only in its adaptation to the problem you're working on.

I told [Kruesi] I was going to record talking, and then have the machine talk back. He thought it absurd. However, it was finished, the foil was put on; I then shouted "Mary had a little lamb," etc. I adjusted the reproducer, and the machine reproduced it perfectly. On first words spoken on a phonograph.

I have had a lot of success with failure

Life's most soothing things are a child's goodnight and sweet music.