I never did anything by accident, nor did any of my inventions come by accident; they came by work.
The value of an idea lies in the using of it.
I can never pick up a thing without wishing to improve it.
I think work is the world's greatest fun.
I've never made a mistake. I've only learned from experience.
I am not overly impressed by the great names and reputations of those who might be trying to beat me to an invention. It's their 'ideas' that appeal to me. I am quite correctly described as 'more of a sponge than an inventor