Knowledge of what is does not open the door directly to what should be.
Albert Einstein

Real knowledge is to know the extent of one's ignorance.
Confucius

To know what you know and what you do not know, that is true knowledge.
Confucius

No man can reveal to you nothing but that which already lies half-asleep in the dawning of your knowledge.
Khalil Gibran

I would rather excel in the knowledge of what is excellent, than in the extent of my power and possessions.
Plutarch

They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.
Terry Pratchett

The only good is knowledge, and the only evil is ignorance.
Herodotus

We are drowning in information but starved for knowledge.
John Naisbitt

I think we risk becoming the best informed society that has ever died of ignorance.
Ruben Blades