The goal of cryptography is to make it so that the cost of breaking the system exceeds the value of the information protected.
The most magical things often happen in the corners of our vision.
一件事情都不能做到有始有终,就不要去操持其他的事情;一物也不明白,就不要追求博闻广记。
To be unhomed is not to be homeless, but to have your home always in question.