All lives have equal value. And so you say, 'why do poor children die when other children don't? Why do some people have enough nutrition or reasonable toilets and other people don't?' So those basic needs that, through innovation, actually it's very affordable to bring them...to everyone.

I am not topper in my university but all toppers are working in my microsoft company.

Finally, assuming that many of those are fulfilled, which won't be easy in tight budget times, we're taking the supply side at the basic research level, because that's where government is absolutely fundamental.

Really advanced civilization is based on advances in energy.

I have an excellent memory, a most excellent memory.

There are several hundred people who stayed in the Ebola-affected countries and continued to do the work, put themselves at great risk because medical workers are the most likely to be infected because they're helping out when the person's health is deteriorating, including quite a bit of bleeding as they're getting very, very sick.

I'm truly saddened to learn of Steve Jobs' death. The world rarely sees someone who has had the profound impact Steve has had, the effects of which will be felt for many generations to come. For those of us lucky enough to get to work with him, it's been an insanely great honor. I will miss Steve immensely.