The value chain is the set of activities through which a product or service is created and delivered to customers.

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.

我不是女权主义者，但我确实相信女性的力量。

未来属于那些能够适应变化而不失去核心价值观的人。

我们生活在一个过去总是存在，未来总是不确定的世界中。

不要着急，最好的总会在最不经意的时候出现。