What we know

From the book I am currently reading:

"The older I get the less I know. When I was younger I thought my knowledge would increase with the years, that it was steadily enlarging like the universe. A constantly widening area of certainty that correspondingly displaced and diminished the extent of uncertainty..I was really very optimistic. With the passage of time I must admit I know roughly the same amount, perhaps even slightly less, and not all with the same certainty as then."

Silence in October by Jens Christian Grøndahl