Karl Popper on knowledge

We must plan for freedom, and not only for security, if for no other reason than that only freedom can make security secure.

The game of science is, in principle, without end. He who decides one day that scientific statements do not call for any further test, and that they can be regarded as finally verified, retires from the game.

Scientists try to eliminate their false theories, they try to let them die in their stead. The believer⁠—whether animal or man⁠—perishes with his false beliefs.

One thing only I know, and that is that I know nothing.

Socrates470–399 BC

Information is not knowledge.

There is only one good, knowledge, and one evil, ignorance.

Socrates470–399 BCII: xxxi. Original Greek: ἓν μόνον ἀγαθὸν εἶναι, τὴν ἐπιστήμην, καὶ ἓν μόνον κακόν, τὴν ἀμαθίαν

• Good & Evil