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.

I am, in fact, a medical doctor; I am a world expert in mechanical heart technology; and I am an athletically fit man who takes care of his own health through diet and exercise, including frequent five mile runs.

As a medical doctor who chose a career in artificial heart technology rather than clinical practice, I decided not to take an internship, which is required for licensing. Instead, I work with invention, manufacturing, regulatory affairs, and clinical application of artificial hearts.

The United States has an active pharmaceutical industry that has brought huge benefits to the U.S. public. Most Americans, who benefit from these advances, have little understanding of how difficult it is to create an important new medical therapy and make it available to improve public health.

I do not practice clinical medicine and hence do not treat individual patients. My career is in medical science.

I am a medical scientist, not a practical physician.

I accepted the role of spokesman for Lipitor because I am dedicated to the battle against heart disease, which killed my father at age 62 and motivated me to become a medical doctor.