A mathematician makes plans to travel backwards in time through a wormhole to a parallel universe when he can't even make it to Mars with the fastest rocket on hand today.

A mathematician tells you that the wall of warped space prevents the Moon from flying out of its orbit yet can't tell you why an astronaut can go back and forth across that same space.

A mathematician says that an electromagnetic wave travels from Andromeda to your eye and that it also extends from Andromeda to your eye.

A mathematician is an individual who proves his beliefs with equations.

A relativist is an individual who doesn't know the difference between an adjective and an adverb.

A mathematician believes that describing the speed of Mercury with equations amounts to science.