My father was a businessman, but my mother was an intellectual. She cared about culture, politics, and philosophy, so I became interested in the protest aspect of Latin American art.

I started my career as an urban planner, working for the city, doing what I would call 'do-gooder' things, particularly for low-income neighborhoods.

I have made more money than I ever thought anybody should ever make. But who cares if you're worth $500 million or $1 billion? That is not what I want to be remembered for, but for giving something back.

I don't think of investing in Cuba after all the hardships of the people there as a profit-making thing for us. I have thought of it as revitalizing the island.

When I was a physics major in the late 1970s, my very few fellow female students and I had high hopes that women would soon stand equal with men in science. But progress has proved slower than many of us imagined.

Ethics are pre-determined and a matter of discovery, not a evolved concept.

The happiest people I've found are in science. These people have three times the IQ - maybe I'm exaggerating. They have a higher IQ than I do. They love what they're doing, they have a good family life, they're satisfied.

I faced a certain amount of violence. It taught me that I had to learn to protect myself - and it made me stronger. It could have made me step backwards with my self-discovery. Instead, it pushed me further.