I did not expect to find such an interesting video this morning! Thank you for that!
It makes perfect sense, though: Knowledge does not equal Understanding. How many times did your parents tell you: "why did you do that? You know better!" Just because we know something with our minds, with our brains, does not necessarily mean we understand it. (or obey that understanding)
However, when you combine knowledge with understanding, you get Wisdom. And that comes with time and experience.