Time is the most important thing to me - how can you do all the things you want to do with such limited time… I'm hoping science of life extension makes progress.

It's such a long mission and we get to spend so much time in space... we're doing such exciting research. And I don't want to overemphasize the life science research, but as a physician the life science research that we're doing is extremely exciting.

At a time when science plays such a powerful role in the life of society, when the destiny of the whole of mankind may hinge on the results of scientific research, it is incumbent on all scientists to be fully conscious of that role, and conduct themselves accordingly.

My favorite book in life is 'A Wrinkle In Time,' which I read before high school. It was my first introduction into the meeting of science and spirit and the universe and big thoughts and all of those interesting New Age-y concepts. It made everything make sense to me and opened up my mind.

I believe we can prevent or delay most disease until the 9th or 10th decade. The goal is to prevent anything that can affect your quality of life prior to those years! By the time many of us get to the 9th or 10th decade, who knows where the new medical and science will take us? I am an optimist!

I don't believe there's anything in life you can't go back and fix. The ancient Vedas - the oldest Hindu philosophy - and modern science agree that time is an illusion. If that's true, there's no such thing as a past or a future - it's all one huge now. So what you fix now affects the past and the future.

My undergraduate years at the University of Nebraska were a special time in my life: the combination of partying and intellectual awakening that is what the undergraduate years are supposed to be. I went to the university with the goal of becoming an engineer; I had no concept that one could pursue science as a career.

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