I actually had a similar discussion with a friend a while back! Ideally, I'd say you convey the spirit of the scientific method, so the new civilization skips the first few millennia of mysticism and alchemy, and goes straight to rigorous discovery. Trying to put any individual fact in there seems hopeless when measures against the flood of knowledge we have now.

Maybe something along the lines of

True understanding is gained though falsifiable theories, experiments, and challenges from your peers, until that which fails to be disproven can be accepted as the truth