When I sit down in front of a Windows machine, I can't write; when I sit down in front of my Mac, I can write. So I only use Macs.

The past history of human belief is a cautionary tale. We have killed thousands of our fellow human beings because we believed they had signed a contract with the devil, and had become witches. We still kill more than a thousand people each year for witchcraft. In my view, there is only one hope for humankind to emerge from what Carl Sagan called "the demon-haunted world" of our past. That hope is science.

It's better to die laughing than to live each moment in fear.

Grant knew that people could not imagine geological time. Human life was lived on another scale of time entirely. An apple turned brown in a few minutes. Silverware turned black in a few days. A compost heap decayed in a season. A child grew up in a decade. None of these everyday human experiences prepared people to be able to imagine the meaning of eighty million years - the length of time that had passed since this little animal had died.

Power is neither male or female.

At the edge of chaos, unexpected outcomes occur. The risk to survival is severe.

The fact that the patients were complex human beings with a rich life beyond the hospital never really sank into the consciousness of the residents. Because they had no rich lives beyond the hospital, they assumed no one else did, either. In the end, what they lacked was not medical knowledge but ordinary life experience.