We know about every massacre that has taken place close to the present, but the ones in the distant past are like trees falling in the forest with no one to hear them.

Terrorist bombings, like rampage shootings, are events that maximize the amount of publicity per amount of damage. That's why people do them, because they know they will set off a media frenzy.

People know there is a difference between what you do and what you accept. There is a difference between me knowing that people swear, me hearing people swear and me swearing, and everyone accepting that this is something you can do as much as you like.

Astrology had an important role in the ancient world. You can't understand many things unless you know something about astrology - the plays of Shakespeare and so on.

Academics lack perspective. In a debate on whether the world is round, they would argue, 'No,' because it's an oblate spheroid. They suffer from 'the curse of knowledge': the inability to imagine what it's like not to know something that they know.

One of the perks of being a psychologist is access to tools that allow you to carry out the injunction to know thyself.