你掌握了对方的利益，你就掌握了对方的预期，就能掌握对方的行为。
If you control someone's interests, you control their expectations, and thus their actions.
The merit of Marx is that he suddenly produces a qualitative change in the history of social thought. He interprets history, understands its dynamic, predicts the future, but in addition to predicting it, he expresses a revolutionary concept: the world must not only be interpreted, it must be transformed.
在了解物理力、它们的规律及相互关系之后，接下来是它们起源的问题。
积极思考的力量是在环境中没有任何支持的情况下，在自己身上产生一种确定感的能力。