“I don't think necessity is the mother of invention. Invention, in my opinion, arises directly from idleness, possibly also from laziness. To save oneself trouble.”— Agatha Christie
“It's a replacement for the heart. It's a biventricular replacement, what's called a total artificial heart.”— Robert Jarvik
“Among the many mechanical contrivances which I have had the good fortune to bring to a successful issue, there is none which has given me so much pleasure as my steam-hammer.”— James Nasmyth
“I have thought of a method of fixing the image of the spectrum, with the colors. It is the photographic image of the mirror itself.”— Gabriel Lippmann
“I am an enthusiast, but not a crank in the sense that I have some pet theories as to the proper construction of a flying machine.”— Wilbur Wright
“I understood that the person who has the patent has the legal right to tell everybody else to stop doing what they're doing.”— Gordon Gould