When we talk about ‘knowing nothing’, we are describing an intellectual state of accepting the possibility of being wrong about anything and everything we “know”, no matter how sure or obvious that knowledge may be. ‘Know no thing’ might be a better way to say this. A reminder to question everything, especially our oldest and deepest beliefs.
“I am the wisest man alive, for I know one thing, and that is that I know nothing” – Socrates, (Plato’s Republic)
Confirmation bias – our tendency to search for, interpret, favor, and recall information in a way that confirms or supports one’s existing beliefs or values.