地理学的研究是对地球作为人类居住地的研究。

To read is to travel without moving; to write is to move without traveling.

农业的真正进步意味着让土地比我们发现时更好。

The only limit to our realization of tomorrow will be our doubts of today.

我接的每一个角色对我来说都是一次新的旅程。