A submarine is a hermetic environment where no water can enter and no air can escape.
A team of engineers specifically focused on ensuring the space shuttle was hermetic so that the passengers would stay safe.
We give below some of the more important hermetic axioms from The Kybalion with a few comments added to each.
In the leisure thus gained he wished to "recruit his spirits, range his papers," and prepare some important chemical investigations which he proposed to leave "as a kind of Hermetic legacy to the studious disciples of that art," but of which he did not make known the nature.
Of these pseudepigraphic Hermetic writings some have come down to us in the original Greek; others survive in Latin or Arabic translations; but the majority appear to have perished.