You are looking at a very brilliant chemistry joke made by Paris Gray. Too bad school administrators didn't find it funny.

The quote read, "When the going gets tough just remember to Barium, Carbon, Potassium, Thorium, Astatine, Arsenic, Sulfur, Uranium, Phosphorus."

The elements Barium, Carbon, Potassium, Thorium, Astatine, Arsenic, Sulfur, Uranium, Phosphorus translate to [Ba][C][K] [Th][At] [As][S] [U][P], when you use their acronyms.

Walter White would be proud: