Extraordinary claim requires extraordinary proof.

Both the Freudian and the Platonic metaphors emphasize the considerable independence of and tension among the constituent parts of the psyche, a point that characterizes the human condition.

The open road still softly calls.

After I give lectures-on almost any subject-I am often asked, "Do you believe in UFOs?" I'm always struck by how the question is phrased, the suggestion that this is a matter of belief and not evidence. I'm almost never asked, "How good is the evidence that UFOs are alien spaceships?"

Science is only a Latin word for knowledge

There are wonders enough out there without our inventing any.

The absence of evidence is not the evidence of absence.