X-rays ... I am afraid of them. I stopped experimenting with them two years ago, when I came near to losing my eyesight and Dally, my assistant practically lost the use of both of his arms.

So far as the religion of the day is concerned, it is a damned fake ... Religion is all bunk.

Failure is the most effective technique to optimize strategic planning, implementation and processes.

The only thing I use my body for is to carry my brain around.

In 'Common Sense' Paine flared forth with a document so powerful that the Revolution became inevitable. Washington recognized the difference, and in his calm way said that matters never could be the same again.

IF PARENTS PASS ENTHUSIASM ALONG TO THEIR CHILDREN, THEY WILL LEAVE THEM AN ESTATE OF INCALCULABLE VALUE

Most of my ideas belonged to other people who never bothered to develop them.