激光技术的每一次突破都让我们更接近解决困扰科学家数十年的谜题。
Reflect upon your present blessings, of which every man has plenty; not on your past misfortunes, of which all men have some.
书籍是桥梁——连接人与人、地方与地方、时代与时代。
The only limits you have are the limits you believe.
我对历史作为一种虚构的想法感兴趣。