My late, lamented friend Bob Nozick, a fine philosopher, in one of his books, "Philosophical Explanations, " is commenting on the ethos of philosophy -- the way philosophers go about their business.

I started experimenting, making models, talking to experts in the field, taking their feedback, and refining, and I kept on refining and refining for nights and weekends for over five years.

We know that our doctors and nurses and even social workers aren't enough, that the ticking minutes of health care are too constraining.

But frustratingly, with Parkinson's disease and other movement disorders, there are no biomarkers, so there's no simple blood test that you can do, and the best that we have is like this 20-minute neurologist test.

And so then we've developed all these mechanisms, super high-talented people, alignment, talking openly, sharing information -- internally, people are stunned at how much information -- all the core strategies, etc.

They risk their lives to speak up and confront terrorist propaganda, and then they tragically don't reach the people who most need to hear from them.

So Torajans express this idea of this enduring relationship by lavishing love and attention on the most visible symbol of that relationship, the human body.

What moved me the most was that despite these seemingly inhospitable conditions, I was welcomed with open arms into a home that was made with love, care, and unreserved passion.

It's not an equally great answer and my reply to that is usually, "Try to Google the word 'search engine, ' you may find a couple of interesting alternatives."

(Applause) But if you don't mind and can hold your applause till later, I don't want to run out of time, because I want to show you a lot of cool stuff.

I sit on my brother's bed and remember his words, the words he gave me so freely and with so much love, "I am who I am because of you."

Now, as you might imagine, we had to work with a resource that toddlers really care about, so we used the toddler equivalent of gold, namely, Goldfish crackers.

The G8 nations have been incredibly generous on polio over the last 20 years, but we're starting to have something called polio fatigue and that is that the donor nations aren't willing to fund polio any longer.