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

"The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'"

Chance is a word void of sense; nothing can exist without a cause.

财富不应该集中在少数人手中，而应该通过公正的竞争分配给所有人。

心灵不是一个物体，而是一个过程——一个不断变化的体验与适应的流动。