There's no such thing is aging, but maturing and knowledge. It's beautiful, I call that beauty.

Our problem, from the point of view of psychology and from the point of view of genetic epistemology, is to explain how the transition is made from a lower level of knowledge to a level that is judged to be higher.

To express the same idea in still another way, I think that human knowledge is essentially active.

I thought they may have presumed too much knowledge of certain things for people who are not comedians. Like Montreal. A comic understands what it is and its importance, but someone else may not know about it.

Imagine someone holding forth on biology whose only knowledge of the subject is 'The Book of British Birds,' and you have a rough idea of what it feels like to read Richard Dawkins on theology.