在我们心里，有一块地方是无法锁住的，那块地方叫做希望。
In our hearts, there is a place that cannot be locked. That place is called hope.
The gift of language is the single human trait that marks us all genetically, setting us apart from the rest of life.
检验一个假设的唯一方法是寻找所有反对该假设的信息。