释义：要了解过去和现在，以便灵活应变，适应变化。

The most important thing in business is to have a sustainable competitive advantage.

Mistakes can be corrected by those who pay attention to facts but dogmatism will not be corrected by those who are wedded to a vision.

你无法改变过去，但可以改变未来。

你的和平无法到来是因为我。