“Thought…is still possible, and no doubt actual, wherever men live under the conditions of political freedom. Unfortunately…no other human capacity is so vulnerable, and it is in fact far easier to act under conditions of tyranny than it is to think.”
The Human Condition ch. 45 (1958)
Excerpted from: Shapiro, Fred, ed. The Yale Book of Quotations. New Haven: Yale University Press, 2006.