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The challenge in cryptography is not just to create unbreakable codes, but to create systems that remain secure even as technology evolves.

The first duty of a revolutionary is to be educated.

出自漢·桓寬《鹽鐵論·申韓》，也有說出自《鹽鐵論·險固》。有所準備就能制服別人；沒有準備只能被別人制服。釋義：有準備就能鉗制住別人；沒有準備就要受別人的鉗制。