Bill Gates on Knowledge

"It's possible, you can never know, that the universe exists only for me. If so, it's sure going well for me, I must admit."

"It's not manufacturers trying to rip anybody off or anything like that. There's nobody getting rich writing software that I know of."

"We always have to be serious about public health in a global sense and surveillance for "the next one", because we don't know where it will emerge."

"Understand that this is the last physical format there will ever be."

"We've done some good work, but all of these products become obsolete so fast... It will be some finite number of years, and I don't know the number — before our doom comes."

"Your most unhappy customers are your greatest source of learning."

"We don't have the user centricity. Until we understand context, which is way beyond presence — presence is the most trivial notion, just am I on this device or not; it doesn't say am I meeting with something, am I focused on writing something."

"Unfortunately, many programs are so big that there is no one individual who really knows all the pieces, and so the amount of code sharing you get isn't as great. Also, the opportunity to go back and really rewrite something isn't quite as great, because there's always a new set of features that you're adding on to the same program."

"Sometimes we do get taken by surprise. For example, when the Internet came along, we had it as a fifth or sixth priority. It wasn't like somebody told me about it and I said, "I don't know how to spell that." I said, "Yeah, I've got that on my list, so I'm okay." But there came a point when we realized it was happening faster and was a much deeper phenomenon than had been recognized in our strategy."

"I'd like to start by telling you about my wife Melinda's Aunt Myra. We see her a few times a year. Aunt Myra worked for many years taking reservations for Delta Airlines. She lived in New Orleans until Hurricane Katrina, and then she moved to Dallas, Melinda's hometown. She loves to see our kids. When we all get together, she'll sit down on the floor and play games with them. Aunt Myra also has polio. She's in braces, and she has been ever since she was a little girl. Our children only know what polio is because of their aunt. Otherwise, the disease would just be another historical fact they learn about in school. In fact, even though I was born just three years after one of the worst polio epidemics in American history, I didn't know anyone with polio when I was growing up. That's how far we've come."