Life's not fair, get over it!
Intermittency [in availability for wind and solar] changes the economics, particularly this requirement that the power company at all times be able to require power. That's large.
I don't have a magic formula for prioritizing the world's problems.
Banking is necessary - banks are not.
Lectures should go from being like the family singing around the piano to high-quality concerts.
I believe it’s not only possible to eradicate malaria; I believe it’s necessary. Ultimately, the cost of controlling it endlessly is not sustainable. The only way to stop this disease is to end it forever.