Americans are incredibly polite as long as they get what they want.
I never did anything by accident, nor did any of my inventions come by accident; they came by work.
I never perfected an invention that I did not think about in terms of the service it might give others. . . I find out what the world needs, then I proceed to invent.
When you have exhausted all possibilities, remember this - you haven't.
The secret of success is focus of purpose.
The value of an idea lies in the using of it.
Success depends on how many experiments you can fit into 24 hours
Don't talk. I can't hear myself see.
There was a time when self-promotion was considered so verboten, especially for authors.
Now defined as art, the totem has lost cult, taboo, and custom.
To me He is all fault who hath no fault at all: For who loves me must have a touch of earth.