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.

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

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.

The final arbitrator in philosophy is not how we think but what we do.

The important thing is to be able to understand anyone who has something useful to say. - There is a general moral here. Be very careful and very clear about what you say. But do not be dogmatic about your own language. Be prepared to express any careful thought in the language your audience will understand. And be prepared to learn from someone who talks a language with which you are not familiar.

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.