Learning from mistakes and constantly improving products is a key in all successful companies.

While Microsoft does not share all of Oracle's ambitions for Java, we agree that it is a very valuable tool for software developers.

The finest pieces of software are those where one individual has a complete sense of exactly how the program works. To have that, you have to really love the program and concentrate on keeping it simple, to an incredible degree.

If you're a guest [at my $113 million house], you'll be able to call up on screens throughout the house almost any image you like - presidential portraits, reproductions of High Renaissance paintings, pictures of sunsets, airplanes, skiers in the Andes, a rare French stamp, the Beatles in 1965.

It's the poorer people in tropical zones who will get really hit by climate change - as well as some ecosystems, which nobody wants to see disappear.

My fascination is broadly with biology and the fact that our increased understanding of biology allows for breakthroughs in a broad set of diseases.

The next big invention that will change the way we live should be things like ways of generating energy like electricity.