Karl Popper Quotes

Fortunately, nature is as generous with its problems as Nobel with his fortune. The more we know, the more aware we are of what we know not.

The greater our knowledge increases the more our ignorance unfolds.

Indeed, the most important product of knowledge is ignorance.

There are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don’t know we don’t know.

The more we learn the more we realize how little we know.

One of the most painful circumstances of recent advances in science is that each one makes us know less than we thought we did

For only when I err do I get away from what I know and what I understand. If "truth" were what I can understand, it would end up being but a small truth, my-sized. Truth must reside precisely in what I shall never understand.

The goal is to know how not-to-know.

It's good to slowly come to the realization that you understand nothing.

I know nothing, because I know too much, and understand not nearly enough and never will.

The more I know, the less I understand

Our ignorance can be divided into problems and mysteries. When we face a problem, we may not know its solution, but we have insight, increasing knowledge, and an inkling of what we are looking for. When we face a mystery, however, we can only stare in wonder and bewilderment, not knowing what an explanation would even look like.

In the world we live in, what we know and what we don't know are like Siamese twins, inseparable, existing in a state of confusion.

The only thing I know for sure is how much I do not know.

Our knowledge is a little island in a great ocean of nonknowledge.

We don't know all the answers. If we knew all the answers we'd be bored, wouldn't we? We keep looking, searching, trying to get more knowledge.

We don't know a millionth of one percent about anything.

To know anything well involves a profound sensation of ignorance.

The most solid piece of scientific truth I know of is that we are profoundly ignorant about nature.

Our knowledge is a receding mirage in an expanding desert of ignorance.

When it comes to comedy, it might be interesting to know why an airplane works, but really? Maybe it's better not to know why certain things work. Just fly the thing, and if nothing falls apart, you'll be fine.

In order to have wisdom we must have ignorance.

I am really more interested in questions than in giving answers.

I cannot discover that anyone knows enough to say definitely what is and what is not possible.

The scientist should treasure the riddles he can't solve, not explain them away at the outset.