“You see, I can live with doubt, and uncertainty, and not knowing. I think it’s much more interesting to live not knowing, than to have answers that might be wrong. I have approximate answers, and possible beliefs, and different degrees of certainty about different things, but I’m not absolutely sure about anything, and many things I don’t know anything about, such as whether it means anything to ask, “why are we here?”… But I don’t have to have an answer; I don’t feel frightened by not knowing things.”

-Richard Feynman