"Sobriety is concern for one's health - or limited capacity."

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After all, I quite naturally want to live in order to fulfill my whole capacity for living, and not in order to fulfill my reasoning capacity alone, which is no more than some one-twentieth of my capacity for living. What does reason know? It knows only what it has managed to learn (and it may never learn anything else; that isn't very reassuring, but why not admit it?), while human nature acts as a complete entity, with all that is in it, consciously or unconsciously; and though it may be wrong, it's nevertheless alive.

— Fyodor Dostoevsky