The secret of change is to focus all of your energy, not on fighting the old, but on building the new.

在我们视野所及中，人类存在的唯一目的，是在纯粹存在的黑暗中燃起一点光亮。

释义：兵法的要旨在于灵活应变，善于了解和掌握军事的本质，行动之前必须先预测敌人的动向。

The stock market is driven by human emotions, not by economic fundamentals.