生活是世界上最罕见的事，大多数人只是存在而已。

The farmer is the only man in our economy who buys everything at retail, sells everything at wholesale, and pays the freight both ways.

The past is a shadow that follows us everywhere.

集中注意力的能力对于学习、记忆和复杂任务的表现至关重要。

故事是引导我们穿越黑暗的光。