The most sustainable product is the one that already exists.
The real difficulty lies not in devising new ideas, but in escaping from the old ones.
解读:健康是人生基石,一旦失去健康,再多财富、名誉都无福消受,警示人们莫因一时贪念,损害身体,权衡利弊时,把健康放首位。