重要的不是想法，而是实现想法。

The art of cryptography is to make the cost of breaking the system exceed the value of the information protected.

Ring the bells that still can ring, forget your perfect offering. There is a crack in everything, that's how the light gets in.

解释：做大事的不做小事，要成就大事的不成就小事。

Those whose words and deeds are inconsistent are often not respected.

I write to understand what cannot be understood.