Knowledge and uncertainty

Knowledge is an unending adventure at the edge of uncertainty.
— Jacob Bronowski
And perhaps life is too.

Bronowski on impertinent questions

That is the essence of science: ask an impertinent question, and you are on the way to a pertinent answer. — Jacob Bronowski (1908 – 1974) (Image: By NASA; edited by Jaybear (Voyager: Humanity’s Farthest Journey) [Public domain], via Wikimedia Commons)