Bertrand Russell's Guide mug- black background

"Many orthodox people speak as though it were the business of sceptics to disprove received dogmas rather than of dogmatists to prove them.'- as Bertrand Russel once said, it can not be disproved that there is a china teapot revolving around the Sun, somewhere between the Earth and Mars.

A representation of this idea is depicted on two sides of this white ceramic mug, with a space-black background.