“If we take everything into account – not only what the ancients knew, but all of what we know today that they didn’t know – then I think we must admit that we do not know. 

But, in admitting this, we have probably found the open channel. This is not a new idea; this is the idea of the age of reason. 

This is the philosophy that guided the men who made the democracy that we live under. The idea that no one really knew how to run a government led to the idea that we should arrange a system by which new ideas could be developed, tried out, and tossed out if necessary, with more new ideas brought in – a trial-and-error system. This method was a result of the fact that science was already showing itself to be a successful venture at the end of the eighteenth century. Even then it was clear to socially minded people that the openness of possibilities was an opportunity, and that doubt and discussion were essential to progress into the unknown. If we want to solve a problem that we have never solved before, we must leave the door to the unknown ajar.”

A few sentences from “What Do You Care What Other People Think? Further Adventures of a Curious Character” – Richard P. Feynman as told to Ralph Leighton

Highly recommend reading anything by Feynman again and again uplifting brilliance

(opinions on blog my own)