“If your philosophy is not unsettled daily…” -Neil deGrasse Tyson

960 × 720 “If your philosophy is not unsettled daily…” -Neil deGrasse Tyson

“We can know only that we know nothing. And that is the highest degree of human wisdom.” – Leo Tolstoy

“My view is that if your philosophy is not unsettled daily then you are blind to all the universe has to offer.” -Neil deGrasse Tyson