We explore because we are curious, not because we wish to develop grand views of reality or better widgets.

[The 1975 Chase Econometrics] showed that for every one dollar spent on Apollo, 14 came back into the U.S. economy.

Don't undermine the science just because you don't like the economics. That's a dangerous slope, because the problem of course is you're not undermining just that, you're undermining the basis of rational decision-making in society.

Science is different to all other systems of thought because you dont need faith in it, you can check that it works.

Every carbon atom in every living thing on the planet was produced in the heart of a dying star.

You dig deeper and it gets more and more complicated, and you get confused, and it's tricky and it's hard, but... It is beautiful.

Climate change: Don't undermine the science just because you don't like the economics