Tweet The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge. Quote by Stephen Hawking. You May Also Like...The only true wisdom is in knowing you know nothing.Ignorance, the root and stem of all evil.The more I see, the less I know for sure.Life would be tragic if it weren't funny.Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.Where there is shouting, there is no true knowledge.People won't have time for you if you are always angry or complaining.The most important knowledge is that which guides the way you lead your life.We should seek the greatest value of our action.