He who knows much about others may be learned, but he who understands himself is more intelligent. He who controls others may be powerful, but he who has mastered himself is mightier still.
Intellectual knowledge exists in and of the brain. Because the brain is part of the body, which must one day expire, this collection of facts, however large and impressive, will expire as well. {But spiritual insight transcends death.}
If you go searching for the Great Creator, you will come back empty-handed. The source of the universe is ultimately unknowable, a great invisible river flowing forever through a vast and fertile valley. Silent and uncreated, it creates all things.