The concept of a black hole firewall challenges our understanding of quantum mechanics and general relativity.

"In the midst of winter, I found there was, within me, an invincible summer."

I'm the worst thing since Elvis Presley, to do Black music so selfishly.

Prices are important not because money is considered paramount but because prices are a fast and effective conveyor of information through a vast society in which fragmented knowledge must be coordinated.

The most successful states in the future will be those that combine the rule of law and democratic accountability with effective governance.