统一自然界所有力的挑战是几十年来推动理论物理学发展的动力之一。
The safety of our workers must always come first, no matter the cost.
英雄是懂得责任与自由同在的人。
The best thing about getting older is that you don't lose all the other ages you've been.
"The past is never dead. It's not even past."