Robert Jarvik — American Inventor born on May 14, 1946,

Robert Koffler Jarvik, M.D. is an American scientist, researcher, and entrepreneur known for his role in developing the Jarvik-7 artificial heart... (wikipedia)

The artificial heart is very effective as a bridge to transplant, but the number of people that can be saved with human hearts is limited. A perfect artificial heart could save many more patients.
I knew that my father was going to die of heart disease, and I was trying to make a heart for him.
Leaders are visionaries with a poorly developed sense of fear and no concept of the odds against them.
I am a medical scientist, not a practical physician. I think it's very upfront. I am a doctor. I have long experience with heart disease.
This idea that clumsy, stumbling people are real bright is ridiculous, because intelligence is related to neurologic function, and really intelligent people are very well-coordinated.