Knowing includes being aware of how little you know.
The more knowledgeable you are, the more humble you get, in keeping with the realisation of how finite your understanding is as compared to all the Universe has to offer in terms of information and data.
Nature doesn't reveal her secrets easily. Indeed, to the possible dismay of scientists probing her ever more deeply and ruthlessly
"nature loves to hide." - Heraclitus(φύσις κρύπτεσθαι φιλεῖ).