成功的真正标准是让土地比我们发现时更好。
The true measure of success is leaving the land better than we found it.
La literatura es siempre una expedición a la verdad.
An act of goodness is of itself an act of happiness.
"In the end, we only regret the chances we didn't take."
可持续性不仅仅是植树；而是在正确的地方种植正确的树木，并确保它们世代繁茂。