在理论物理学的领域里,每一个发现都会带来新的问题和挑战。
我的生命本来就是预备向你的仇敌抛掷的。
The greatest threat to our forests is not the axe, but indifference.
"Sometimes I think that the only thing that connects us to the past is the present. Without the present, the past would be lost forever."