I'm not talking about Russia in my music. I've never been to Russia. I'm not talking about Africa, Switzerland, China. I'm talking about me being American and growing up in a crazy world and helping to reflect all different sides of life.

My earliest memories of rap music was mixed with my earliest memories of reggae music. They were big sounds around the way, heavy bass lines, strong messages, definitely.

I want to sound like an instrument. I want my voice and my words to marry the beat. I go with the rhythm of it and the words start to come to my mind and those words could be based on things that's been on my mind for the past year, the past month, the past week, whatever; I write it.

Calling Michelle 'Obama Barack's baby mama?' Tell me, is that acceptable? But the Obamas aren't the only targets. Fox's pattern of race-baiting and fear-mongering regularly focuses on black leaders, black institutions and ordinary black people.

If we gutted NASA Earth Science, it wouldn't be NOAA or some other agency that would take the lead. It would be the Chinese and the Europeans and the Japanese.

There are cognitive processes and limbic reactions associated with basic emotions. And you can change brain chemistry, but you're still not going to change memories and experiences in a human being.

In a small lab, if you make a mistake, you can go in the next day and fix it. But here, when you are committed to spending a hundred thousand or a million dollars, you can't fix it later. You need to have a system of checks and balances internally. In particle physics, that's just part of the structure.

Biology is now bigger than physics, as measured by the size of budgets, by the size of the workforce, or by the output of major discoveries; and biology is likely to remain the biggest part of science through the twenty-first century.