The wise seek happiness within their own souls, while fools search outside.

The human being is the only animal that thinks about the future.

释义：观察天下的造化之道，四季周而复始不变，圣人能够体认到这种玄妙的道理并用以教化众生，从而为人民所使用。

In the short run, the market is a voting machine but in the long run, it is a weighing machine.