解释：向外物游览就要要求外物的完备，向自己内心求取，则能充实完善自身。

I was born in Africa.I came to California because it’s really where new technologies can be brought to fruition， and I don’t see a viable competitor.

只要现在能够停下来休息，那么就立刻停下来休息；如果要等到一切事情都办妥时再停下来，那么这样的时刻永远也不可能等到。

挑战在于将平凡变得非凡。