“Most recently, Richman et al (1997) have argued that a four-dimensional”

“If a shadow is a two-dimensional projection of the three-dimensional world, then the three-dimensional world as we know it is the projection of the four-dimensional Universe. ”

“Since a three-dimensional object casts a two-dimensional shadow, we should be able to imagine the unknown four-dimensional object whose shadow we are. I for my part am fascinated by the search for a one-dimensional object that casts no shadow at all.”

“The most agonising thing is to drop doubt into a man about his being a reality, three-dimensional - and not some other kind of reality.”

“The separation of state and church must be complemented by the separation of state and science, that most recent, most aggressive, and most dogmatic religious institution.”

“Mostly, we argued about who which of us was better at arguing, and particularly about who had won the previous argument.”