The truth is, knowledge does not endure, but must be recreated anew by each person, by each generation.
Knowledge is created by and dies with the knower. Only data, or evidence that knowledge has existed survives death, in all the books and buildings and artifacts that people have created as a demonstration of what they knew or came to know through the hard-won process of living and working. These things are not knowledge itself, though some make the mistake of thinking so. Rather, they are the applications of knowledge, its effects.
And that it will die with us. Contrary to received wisdom, it is Art that is short, and Life that is long.
Ars longa, vita brevis are the first two lines of a Latin translation of an aphorism by Ancient Greek physician Hippocrates. The words are commonly translated in English as art is long, life is short. The full text in Latin is:
In this commonly found Latin translation, the first two statements have been switched from the Greek original.
The full text is often rendered in English as:
[The] art is long,
life is short,
The most common and significant caveat in this translation is that "art" (Latin: ars, Ancient Greek: τέχνη (techne)) is interpreted as "technique, craft" (as in The Art of War), not "fine art", Hippocrates being a doctor and this being the start of a medical text. The following line "The physician must not only be prepared to do what is right himself, but also to make the patient, the attendants, and externals cooperate," makes the medical context clear.