It's clear that science and science fiction have overlapping populations.

I don't think the scientific method and the science fictional method are really analogous. The thing about them is that neither is really practiced very much, at least not consciously. But the fact that they are methodical does relate them.

That's what life is, just one learning experience after another, and when you're through with all the learning experiences you graduate and what you get for a diploma is, you die.

For someone to be taken seriously it was valuable to have the appearance of someone who deserved to be taken seriously.

Science fiction is the very literature of change.

If you don't care about science enough to be interested in it on its own, you shouldn't try to write hard science fiction. You can write like Ray Bradbury and Harlan Ellison as much as you want.

I was thinking of writing a little foreword saying that history is, after all, based on people's recollections, which change with time.