A model is such a fascinating toy that you fall in love with your creation.

Do not imagine that you have to know everything before you can do anything. My own best work was done when I was most ignorant.

As far as I can see, our concentration of different abilities in one species - there's nothing I can see that in this Darwinian evolution that could've done that. So it seems to be a miracle of some sort.

When I listen to the public debates about climate change, I am impressed by the enormous gaps in our knowledge, the sparseness of our observations and the superficiality of our theories.

I mean science was blamed for all the horrors of World War I, just as it's blamed today for nuclear weapons and quite rightly.

The ground of science was littered with the corpses of dead unified theories.

CO2 is so beneficial...it would be crazy to try to reduce it