I never pick up an item without thinking of how I might improve it. I never perfected an invention that I did not think about in terms of the service it might give others. I want to save and advance human life, not destroy it. I am proud of the fact that I never invented weapons to kill. The dove is my emblem.

For faith, as well intentioned as it may be, must be built on facts, not fiction - faith in fiction is a damnable false hope.

Work while others are wishing.

The first requisite for success is to develop the ability to focus.

I have not failed. I've just found 10,000 ways that won't work.

Of the 200 light bulbs that didn't work, every failure told me something that I was able to incorporate into the next attempt.

I get my ideas from listening from within.