才有浅深，无有古今；文有伪真，无有故新。
解释：才华有高下之分，没有古今之别；文章有真实、虚伪之差，没有新旧之异。
一个人有身份有地位的时候朋友很多，但危难时候却没人与之交待。
Understanding a problem is half the solution.
Reality is a question of perspective; the further you get from the past, the more concrete and plausible it seems.
The most important thing in a software system is the architecture.