That's one small step for (a) man， one giant leap for mankind.
这是我个人的一小步，却是全人类的一大步。
People change and forget to tell each other.
The only limits are the ones you set for yourself.
人永远无法到达家，但在友好的道路交汇处，整个世界会在某个时刻看起来像家。