信任的人不忠诚,忠诚的人不信任。

可持续性是采石业的未来，我们必须立即行动。

The world is full of obvious things which nobody by any chance ever observes.

To one who has faith， no explanation is necessary.To one without faith， no explanation is possible.

生活其实很简单，但我们坚持把它复杂化。