不必信仰相同的正式宗教——只需共同追求真理。

Sometimes you can do everything right and things will still go wrong. The key is to never stop doing right.

The present state of the system of nature is evidently a resultant 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.

追求幸福与追求快乐不同；幸福是灵魂的一种状态，而不仅仅是感觉。

The power of abstraction allows us to see the common threads that run through seemingly disparate problems.