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The writer's duty is to write with rigor, with honesty, and to never accept compromises.
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.
Cryptography is about communication in the presence of adversaries.