Only people with full stomachs become environmentalists.

We already live a very long time for mammals, getting three times as many heartbeats as a mouse or elephant. It never seems enough though, does it?

I would normally never set out to write a trilogy.

In all of history, we have found just one cure for error—a partial antidote against making and repeating grand, foolish mistakes, a remedy against self-deception. That antidote is criticism.

There's no doubt that scientific training helps many authors to write better science fiction. And yet, several of the very best were English majors who could not parse a differential equation to save their lives.

The sane are usually attracted by other things than power.

If an outsider perceives 'something wrong' with a core scientific model, the humble and justified response of that curious outsider should be to ask 'what mistake am I making?' before assuming 100% of the experts are wrong.