The market is always changing, the only constant is change itself.

译文：立下难以实现的志向，才能吃别人不可能吃的苦，做别人不能做的事，千秋功业，才有得指望；对人对事若发现错误而不忍心去指责、纠正，那么必然会因为不忍心去说而造成祸害。

快乐在于旅程之中。

No matter what he does, every person on earth plays a central role in the history of the world. And normally he doesn't know it.

There are no facts， only interpretations.

The properties of the whole are not deducible from the properties of the parts.