In each case you settle on an act. Doing nothing at all counts as an act.

The best reaction to a paradox is to invent a genuinely new and deep idea.

If you were just intent on killing people you could do better with a bomb made of agricultural fertiliser.

In each case you settle on an act. Doing nothing at all counts as an act.

I have this extraordinary curiosity about all subjects of the natural and human world and the interaction between the physical sciences and the social sciences.

Plutonium has a quite extraordinary relationship with people. They made it, and it kills them.

Every once in a while, something happens to you that makes you realise that the human race is not quite as bad as it so often seems to be.