Checking email when I don’t know an answer.

I don’t believe anything is black and white, so I’m always searching for nuance. On the whole I think this is a positive thing, but it also means I almost never give an unqualified answer.

Often, what happens in science is you got a problem and you solve it, and then there’s not much else to do and you have to move on. But the ribosome turned out to be a rather rich gold mine. Perhaps I’m a little intellectually lazy and feel like, “Why should I bother thinking about something else?” Maybe at some point, I should have thought, “I should do something different.”

Ironically, though, this is also the purchase in which I made my biggest mistake - of a kind, however, never recognized on financial statements. We paid $600 million in 1989 for Gillette preferred shares that were convertible into 48 million (split-adjusted) common shares. Taking an alternative route with the $600 million, I probably could have purchased 60 million shares of common from the company. The market on the common was then about $10.50, and given that this would have been a huge private placement carrying important restrictions, I probably could have bought the stock at a discount of at least 5%. I can't be sure about this, but it's likely that Gillette's management would have been just as happy to have Berkshire opt for common. But I was far too clever to do that.

It’s very gratifying to grow utterly incensed by the Mail Online and come away from it full of fury and absolute outrage at its prejudice and xenophobia — and support for Brexit.