Nicolaus Copernicus Quotes

What you know, you know, what you don't know, you don't know. This is true wisdom.

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

To know, is to know that you know nothing. That is the meaning of true knowledge.

Was not this ... what we spoke of as the great advantage of wisdom -- to know what is known and what is unknown to us?

Much learning does not teach understanding.

I'm not very wise to many things.

The more I see, the less I know.

You only know what you know.

Knowledge is the treasure of a wise man.

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.

All thing I thought I knew; but now confess, the more I know I know, I know the less.

A man doesn't know what he knows until he knows what he doesn't know.

In order to have wisdom we must have ignorance.

The learning and knowledge that we have, is, at the most, but little compared with that of which we are ignorant.

Opinion is the medium between knowledge and ignorance.

It takes considerable knowledge just to realize the extent of your own ignorance.

Know what you know and know that you don't know what you don't know — that is the characteristic of one who knows.

He who understands the wise is wise already.

Understanding that rests in what it does not understand is the finest.

Ignorance is not lack of intelligence, nor knowledge a proof of genius.

Knowledge is the barrier to knowing. When knowledge is dropped, knowing flowers.

Seeing is believing and believing is knowing and knowing beats unknowing and the unknown.

The wise are not learned, the learned are not wise.

Ignorance is bold and knowledge reserved.

I have thousands of opinions still - but that is down from millions - and, as always, I know nothing.