An investigator starts research in a new field with faith, a foggy idea, and a few wild experiments. Eventually the interplay of negative and positive results guides the work. By the time the research is completed, he or she knows how it should have been started and conducted.

To retain my fascination with chemistry, I have had to change my research fields about every 10 years.

Few scientists acquainted with the chemistry of biological systems at the molecular level can avoid being inspired.

By the time I entered college, I had decided not to have children, a decision that was never regretted. Accordingly, I was careful to court only girls who wanted to have professional careers.

I get up late, have an espresso, and immediately start work. I try to get roughly caught up on email before I leave the house, then if I need to write anything or review a complex deal, I do that, and then I head to the office and work on my top few priorities for the day. I try to schedule my meetings in the afternoon.

You can be an idiot and survive because you just go to McDonalds for your food, and you go to work and do some sort of inane job, which is nobody taking any responsibility - it's always up the line - and then you watch the Super Bowl, and that's it. But in the old days, you really had to know how your world works. You don't need that anymore.

When you look at my record at 10-0 as a professional and look at Jon Jones' record when he was 10-0, who was his toughest guy? Stephan Bonnar, and he did not finish him. I have fought higher-caliber opponents at this stage in my career than Jon did in his at 9-1; His tenth fight was Matt Hammil.

I sleep good because I have a great family and stuff like that, a great life, but career-wise, I have some things I need to accomplish.