All the great things are simple， and many can be expressed in a single word： freedom， justice， honor， duty， mercy， hope.

哲学家们只是用不同的方式解释世界，而问题在于改变世界。

解析：仁、义皆由心生。

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

"The past is a shadow that follows us, but it is the light ahead that guides our steps."

我尽力摆脱那些总是自信满满地回答他们并没有真正了解的问题的人。