The value chain is the set of activities through which a product or service is created and delivered to customers.

变化是宇宙中唯一不变的东西。

可持续性不是选择，而是我们对后代的责任。

个体只有使自我向高于人的心灵权威臣服，才能赋予自己的生命以特质和意义。