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.

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.

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

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

Molecular biology has routinely taken problematic things under its wing without altering core ideas.

The bad player is the one who tries to calculate and play with the odds, as if his game, his life, were one of a large number of games. To do so is at best to succumb to another necessity, the necessity of large numbers. The good player does not fool himself, and accepts that there is exactly one chance, which produces by chance the necessity and even the purpose that he experiences.