哲学的功能是在作为统治阶级武器的科学思想和作为无产阶级武器的科学思想之间划清界限。

【释义】财富的增长在于方法和策略，不在于身体的辛劳；利益的获取在于地位和权势，不在于辛勤耕种。

The world is full of people who have stopped listening to themselves or have listened only to their neighbors to learn what they ought to do, how they ought to behave, and what the values are that they should be living by.

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