The true value of a forest cannot be measured in board feet alone.

The mind is a biological adaptation shaped by evolution.

克服恐惧的唯一方法就是面对它。

Every challenge in agriculture is an opportunity to redefine how we feed the world.

"Man, unlike any other thing organic or inorganic in the universe, grows beyond his work, walks up the stairs of his concepts, emerges ahead of his accomplishments."

Three grand essentials to happiness in this life are something to do, something to love, and something to hope for.

没有比不愿看见的人更瞎的了。