Polio's pretty special because once you get an eradication, you no longer have to spend money on it; it's just there as a gift for the rest of time.

I spend a lot of time reading.

My experience of malaria was just taking anti-malarials, which give you strange dreams, because I don't want to get malaria.

The Internet is the easiest thing to get into. To be an Internet retailer, you just get that URL.

I think when smallpox was eliminated, the whole world got pretty excited about that because it's just such a dramatic success.

For a highly motivated learner, it's not like knowledge is secret and somehow the Internet made it not secret. It just made knowledge easy to find. If you're a motivated enough learner, books are pretty good.