Which came first, the mind or the idea of the mind? Have you never wondered? They arrived together. The mind is an idea.

In this environment it was a simple matter for The Republic to maintain its structure. People did as they were told because they were working together, focused on a common threat, a shared enemy. But time passes. Fear becomes a memory. Terror becomes routine; it loses its grip.

... from our vantage point it is now clear that the only thing the population had to fear was fear itself.

Human spirit is the ability to face the uncertainty of the future with curiosity and optimism.

I write with teenagers in mind.

Many scholars have complained of our tendency to see history only in conflicts, but I am not convinced they are right. It is in conflict that our values are exposed.

Superstition is the need to view the world in terms of simple cause and effect.