The true value of a forest can never be measured in board feet alone.

"What we choose to remember says as much about us as what we choose to forget."

生命的价值不在于寿命的长短，而在于我们如何利用它。

【释义】当商品价格高涨时，要像对待粪土一样迅速出售；当商品价格低廉时，要像对待珠玉一样大量购入。