For example, I was a little surprised when I was talking to a friend who was going to go on the radio. He does work on cosmology and astronomy, and he wondered how he would explain what the applications of this work were. "Well," I said, "there aren't any." He said, "Yes, but then we won't get support for more research of this kind." I think that's kind of dishonest. If you're representing yourself as a scientist, then you should explain to the layman what you're doing—and if they don't want to support you under those circumstances, then that's their decision.

I was going to say work on what you love, but that's not really it. It's so easy to convince yourself that you love what you're doing — who wants to admit that they don't? When I think about it, the happiest and most successful people I know don't just love what they do, they're obsessed with solving an important problem, something that matters to them.

Most investors, of course, have not made the study of business prospects a priority in their lives. If wise, they will conclude that they do not know enough about specific businesses to predict their future earning power. I have good news for these non-professionals: The typical investor doesn't need this skill. ... The goal of the non-professional should not be to pick winners – neither he nor his "helpers" can do that – but should rather be to own a cross-section of businesses that in aggregate are bound to do well. A low-cost S&P 500 index fund will achieve this goal.

Never take advice from anyone with no investment in the outcome.

Anyway, what’s the point of a plot, you know? Has life got a plot? Not that I know of. So why should a novel have a plot? But it has to have some kind of story. It has to have some kind of structure.

I think it begins as a kind of tension in space.  There’s something out there and it’s waiting for the big bang, and I have to get that into my head.  I have a composer friend in Ireland, and he beautifully said, “I have this scream in my head and I have to get it into the orchestra.  I have to get it into the music.”  But I wouldn’t be quite as dramatic as that.  But I have this tension.  I have this thing that has to be done. And the problem is, you see, once you’ve got the first paragraph down and you’ve got the tone, then the bloody book is written.  All you have to do is fill it in then, which makes it really boring.  I mean I’d like to be like one of those Japanese artists, you know, just go shoop ! and it’s done.  But no, it takes years.

I keep office hours. I work from 9:30 to 6:00. It’s curious. In the morning, I could just about tie my shoelaces before noon, but I can write. It’s obviously a different part of my brain that’s working.