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密碼學的藝術是使破解系統的成本超過受保護信息的價值。

擺脫誘惑的唯一方法就是向它屈服。

Success comes when you believe in yourself and never give up on your dreams.

There is only one real sin, and that is to persuade oneself that the second-best is anything but the second-best.

There are two ways to extend a business. Take inventory of what you are good at and extend out from your skills. Or determine what your customers need and work backwards, even if it requires learning new skills.

The strongest is never strong enough to be always the master， unless he transforms strength into right， and obedience into duty.