With tech companies, whoever's the leader is always questioned, you know. They say, 'Is this the end of them?' And - there's more - more times people think that's the case than it really is the case.

Getting the word out that, yes vaccines are great, the safety data's very, very clear, including any of these specific concerns, that's very important to our foundation.

You're never going to get the amount of CO2 emitted to go down unless you deal with the one magic metric, which is CO2 per kilowatt-hour.

I get more spam than anyone I know.

here are economies like China's economy where it's less than a tenth [of a percent] today, although it is growing, is quite small, because of the notion that the government takes care of everything, and Europe and China, philanthropy has not been nearly of the same scale.

Effective philanthropy requires a lot of time and creativity - the same kind of focus and skills that building a business requires.

I studied every thing but never topped.... But today the toppers of the best universities are my employees