Who said "The most exacting demand is that we ourselves think."?

This quote is attributed to Heidegger, Martin.

The most exacting demand is that we ourselves think. - Heidegger, Martin

"The most exacting demand is that we ourselves think."

Heidegger, Martin Education

Philosopher German 1889–1976

"Language is the house of being."

"The most thought-provoking thing in our thought-provoking time is that we are still not thinking."

"Man acts as though he were the shaper and master of language, while in fact language remains the master of man."

"Dwelling is the manner in which mortals are on the earth."

"Education opens doors."

"Education opens doors to endless possibilities."

"I ain't got the education you got, bub."

"You can't put a price on history."