量子理论是一个绝佳的例子，展示了理论如何既奇特又真实。

我们唯一需要害怕的就是害怕本身。

数学推理可以相当系统地看作是对两种能力的结合运用，我们可以称之为直觉和独创性。

The state, therefore, has not existed from all eternity. There have been societies that did without it, that had no notion of the state or state power. At a certain stage of economic development, which was necessarily bound up with the split of society into classes, the state became a necessity.

Innovation is not just about technology; it's about changing mindsets and business models.