But if thought is to become the possession of many, not the privilege of the few, we must have done with fear. It is fear that holds men back — fear lest their cherished beliefs should prove delusions, fear lest the institutions by which they live should prove harmful, fear lest they themselves should prove less worthy of respect than they have supposed themselves to be.

Be it books, software, films, other events or scientific papers – there’s a lot to be said about how good, or bad or useful they are. A careful critique of either of these is the beginning of a conversation.