Sustainable quarrying isn't an option; it's our obligation to future generations.

Every mental state exists for a purpose; to understand it, we must ask what function it serves in the broader system of behavior.

In the global economy, cultural differences are the biggest challenge and the biggest opportunity.

我不是说唱歌手，我是一个埃及语的传奇。

The stock market is filled with individuals who know the price of everything, but the value of nothing.

所谓生活，一半是回忆，一半是继续。