“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 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
“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
“To invent an airplane is nothing. To build one is something. But to fly is everything.”— Otto Lilienthal