选择最有用的生活方式，习惯会使其变得最令人愉悦。
Choose the life that is most useful， and habit will make it the most agreeable.
过去是幽灵，未来是梦，我们拥有的只有现在。
The best way to predict the future is to invent it. Don't worry about what anybody else is going to do. The best way to predict the future is to invent it.
A woman can become a man’s friend only in the absence of passion between them.
You never fail until you stop trying.
可持续性不是一种选择；它是我们星球未来的必需品。
定义就是限制。