心理学必须基于可观察的事实，而非推测。

每个人都有属于自己的故事。

在必要时，一个国家杀死暴君的权利永远不应受到质疑。

写作的行为是一种乐观的行为。

Coming up with an idea is the least important part of creating something great. It has to be the right idea and have good taste, but the execution and delivery are what’s key.

早期阶段不是避免风险，而是管理正确的风险。

The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.