When I was 20, I thought anyone in the music business over 25 is past it. Then at 30, you think anyone still doing it at 35 is ridiculous. Suddenly, you find yourself at 48 and still doing it, so I don't know what to say, really.

I started writing songs at age 15.

With a track like 'White Christmas,' everybody has done that song in every format you can imagine, so I just looked at the chords at that particular song and what chords would make it work. That's kind of quite a sad song, and I had this idea of someone singing it in the subway, someone who is homeless, old and sad.

Collaboration is no longer painful - or precious.

We need to get across the excitement and creativity of science. That it isn't just a list of facts that have already been discovered - but a process, a creative project, that you are generating ideas, testing them and looking for evidence.

America is composed of all kinds of people - part of the difficulty in our nation today is due to the fact that we are not utilising the abilities and the talents of other brown and black peoples and females that have something to bring to the creativity and the rejuvenation and the revitalisation of this country.

You gotta understand, you can't look at no pictures and look at the media and the critics and what they saying on no Internet.

Afghanistan has the capacity to become an industrialized country because of its mining and agriculture sectors. We can also create jobs for educated men and women by investing in information technology.