The United States, in their expansive capacity, are capable of containing within their limits the whole population of the earth.

Read what you love until you love to read.Books Over and Over Again.

分子的美在于它的结构和它的故事。

If you want to fly, you have to give up the things that weigh you down.

智能化不是替代人，而是让人从繁重劳动中解放出来。

平静的海面从未造就过熟练的水手。