The hardship of living in a refugee camp made me psychologically strong.

The greatest grand challenge for any scientist is discovering how to prevent the spread of HIV and finding the cure or an effective vaccine for AIDS.

Nelson Mandela and Malcolm X came out of prison stronger.

When I enrolled in college at age 19, I had a total of eight years of formal classroom education. As a result, I was not comfortable with formal lectures and receiving regular homework assignments.

I wanted to become a mathematician, physicist or astronomer.

The Connection Machine was the most powerful supercomputer in the world. It is a complex supercomputer and it will take forever to completely describe how it works.

Scientists try to discover or unravel the mysteries of nature. Some of the problems we are trying to solve have been solved in nature.