Shameless Screen Grab courtesy of the Link Above, and the Talented and Questioning Mind of Randall Munroe
Air-Bender? Just Air? Even with all four Classical Elements, you're no match for the Periodic Table, and it's Master Dmitri Ivanovich Mendeleev !
Ignorance. Faith. Religion. Witchcraft. Alchemy. Science (SCIENCE!). Enlightenment. It's all been a progression towards understanding, in the pursuit of Truth.