“Thinking accompanies life and is itself the de-materialized quintessence of being alive; and since life is a process, its quintessence can only lie in the actual thinking process and not in any solid results or specific thoughts. A life without thinking is quite possible; it then fails to develop its own essence – it is not merely meaningless; it is not fully alive. Unthinking men are like sleepwalkers.”

Hannah Arendt Thinking