Search for role models you can look up to and people who take an interest in your career. But here's an important warning: you don't have to have mentors who look like you. Had I been waiting for a black, female Soviet specialist mentor, I would still be waiting. Most of my mentors have been old white men, because they were the ones who dominated my field.

I've found my place in life, that I'm passionate about, my talents and my passion have merged, and I'm trying to do the best that I can.

If I wrote a book, I had to be willing at least to talk about some of my struggles, whether in my personal life, health crises, or the deaths of my parents, because there can too easily be a perception of me that my life just went from A to Z uninterrupted, without any ups and downs, and that's not a fair representation.

You know, life is not one in which you just get to choose the things every day that come easily to you. And it's also true - and this is the self-esteem problem - you learn that there are people who are better at things than you are.

I am proud of the decision of this Administration to overthrow Saddam Hussein. I am proud of the liberation of 25 million Iraqis. And I'm proud to see an Iraq that is now emerging with a stronger government, a truly multiethnic, multi-sectarian government that's about to have its second set of elections, that's inviting private investment into Iraq, and that is making peace with its Arab neighbors.

I don't think that anybody could have predicted that these people would take an airplane and slam it into the World Trade Center, take another one and slam it into the Pentagon, that they would try to use an airplane as a missile.

I don't know anyone who is more admired and respected in the international community than President Karzai, for his strength, for his wisdom and for his courage to lead this country first in the defeat of the Taliban and now in rebuilding a democratic and unified Afghanistan. And I can tell you I am with foreign ministers and with heads of state all over the world. I sit in the councils of NATO. I sit with the EU. I sit with people all over the world and there is great admiration for your president and also for what the Afghan people are doing here.