Sustainability is not an option; it’s a responsibility.
可持续性不是一种选择,而是一种责任。
【释义】:积累千万财富,不如掌握一门技艺。  
The past is never dead; it's not even past. This is especially true in detective fiction.
我们不是从祖先那里继承地球;我们是从子孙那里借来的。这一原则指导着我们迈出的每一步。
Happiness is a state of mind, not a set of circumstances.