孩子们值得拥有挑战他们的书，而不仅仅是娱乐。

To be a writer is to be a spy on life.

Leadership means making tough decisions today that will benefit everyone tomorrow.

科幻小说是变化的文学。

You don't need to change a single thing about yourself.

量子力学和引力之间的相互作用是我们这个时代最大的谜题，解决它将揭示宇宙的秘密。