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Cryptography is the art of transforming information into a form that is unintelligible to anyone who does not possess the key to unlock it.

Memory is fragile and the space of a single life is brief, passing so quickly that we never get a chance to see the relationship between events.

For me they normally happen, these career crises, often, actually, on a Sunday evening, just as the sun is starting to set, and the gap between my hopes for myself and the reality of my life starts to diverge so painfully that I normally end up weeping into a pillow.