One has to take initiative in life to achieve what he or she wants.

And what I wanted to do was, I wanted to explore problems and areas where we didn't have answers. In fact, where we didn't even know the right questions to ask.

Commitment, belief and positive attitude are all important if you're going to be a success, whether you're in sports, in business or, as in my case, anthropology.

My real father died when I was two years old, so I never knew him. He was a barber in Chicago.

The right question to ask from a Darwinian prospective is what was it about bipedalism that was so advantageous? Why did it lead to a - why did that adaptation ultimately lead to a species Homo sapiens that has come to dominate the planet today with six and a half billion people?

One has to take initiative in life to achieve what he or she wants.

Scientists are very afraid of being proven wrong.