Certainly, if you want to get into the field of biology these days, you should also study anthropology because so much work now is with communities. How do you help communities? How do you convince communities to protect their environment? — Especially if, let’s say, you have a tiger eating your cows. The natural gesture is to kill that tiger. Well, what are the alternatives? That’s the kind of thing one is now increasingly working with.

so I sometimes think, why should I talk young women into being a scientist if they then end up being sort of disliked or not accepted by their contemporaries and so it’s a tricky business actually.

Everything I did, and I think everything Martin Luther King did, was because we allowed our lives to be in tune with what we felt to be a divine purpose. And it didn’t matter whether we lived or died. It didn’t matter how much money we made, or what we accomplished.

Life doesn't offer you the perfect opportunity at the perfect time. Opportunities come when you least expect them ... Rarely are opportunities presented to you in a perfect way. In a nice little box with a yellow bow on top. ‘Here, open it, it's perfect. You'll love it.’ Opportunities -- the good ones -- are messy, confusing and hard to recognize. They're risky. They challenge you.

I feel that because I challenge myself so often, sometimes I will fail. This is, to me, the essence of competition — that there will be both winners and losers. But I have great faith in myself that I will turn this loss into something positive.

One of my favorite lessons is best summed up in the words of an old Athabascan Indian who told me, “There are many hard things in life, but there is only one sad thing, and that is giving up.”