To know that you do not know is the best.
To think you know when you do not is a disease.
Recognizing this disease as a disease is to be free of it.

He who thinks he knows, doesn’t know. He who knows that he doesn’t know, knows. For in this context, to know is not to know. And not to know is to know.

To know, but to be as though not knowing, is the height of wisdom.

Not-knowing is true knowledge.
Presuming to know is a disease.
First realize that you are sick;
then you can move toward health.

We absolutely must leave room for doubt or there is no progress and no learning. There is no learning without having to pose a question. And a question requires doubt. People search for certainty. But there is no certainty. People are terrified — how can you live and not know? It is not odd at all. You only think you know, as a matter of fact. And most of your actions are based on incomplete knowledge and you really don't know what it is all about, or what the purpose of the world is, or know a great deal of other things. It is possible to live and not know.

Why do we know what we know and why don't we know what we don't know? What should we know and what shouldn't we know? How might we know differently?

When you know a thing, to hold that you know it; and when you do not know a thing, to allow that you do not know it — this is knowledge.

Knowledge is knowing that we cannot know.

We absolutely must leave room for doubt or there is no progress and there is no learning. There is no learning without having to pose a question. And a question requires doubt. People search for certainty. But there is no certainty. People are terrified — how can you live and not know? It is not odd at all. You only think you know, as a matter of fact. And most of your actions are based on incomplete knowledge and you really don't know what it is all about, or what the purpose of the world is, or know a great deal of other things. It is possible to live and not know.

You only think you know, as a matter of fact. And most of your actions are based on incomplete knowledge and you really don’t know what it is all about, or what the purpose of the world is, or know a great deal of other things. It is possible to live and not know.

« You only think you know, as a matter of fact. And most of your actions are based on incomplete knowledge and you really don’t know what it is all about, or what the purpose of the world is, or know a great deal of other things. It is possible to live and not know.

He who thinks he knows, doesn't know. He who knows that he doesn't know, knows.

Perhaps my greatest wisdom is the knowledge that I do not know.

Nothing puts a greater obstacle in the way of the progress of knowledge than thinking that one knows what one does not yet know.