"The human condition is such that pain and effort are not just symptoms which can be removed without changing life itself; they are rather basic modes in which life itself, together with the necessity to which it is bound, makes itself felt."
"The most radical revolutionary will become a conservative the day after the revolution."
"Nobody has the right to obey."
"Action, the only activity that goes on directly between men without the intermediary of things, is the one activity from which men are freed by no automation."
"The human condition is not exhausted by existentiality."